[feature] Initial Prometheus metrics implementation (#2334)

* feat: Initial OTEL metrics

* docs: add metrics documentation

* fix: metrics endpoint conditional check

* feat: metrics endpoint basic auth

* fix: make metrics-auth-enabled default false

* fix: go fmt helpers.gen.go

* fix: add metric-related env vars to envparsing.sh

* fix: metrics docs

* fix: metrics related stuff in envparsing.sh

* fix: metrics docs

* chore: metrics docs wording

* fix: metrics stuff in envparsing?

* bump otel versions

---------

Co-authored-by: Tsuribori <user@acertaindebian>
Co-authored-by: Tsuribori <none@example.org>
Co-authored-by: tsmethurst <tobi.smethurst@protonmail.com>

1 files changed, 1376 insertions, 0 deletions

diff --git a/vendor/github.com/prometheus/client_model/go/metrics.pb.go b/vendor/github.com/prometheus/client_model/go/metrics.pb.go
new file mode 100644
index 000000000..cee360db7
--- /dev/null
+++ b/vendor/github.com/prometheus/client_model/go/metrics.pb.go
@@ -0,0 +1,1376 @@
+// Copyright 2013 Prometheus Team
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.30.0
+// 	protoc        v3.20.3
+// source: io/prometheus/client/metrics.proto
+
+package io_prometheus_client
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	timestamppb "google.golang.org/protobuf/types/known/timestamppb"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type MetricType int32
+
+const (
+	// COUNTER must use the Metric field "counter".
+	MetricType_COUNTER MetricType = 0
+	// GAUGE must use the Metric field "gauge".
+	MetricType_GAUGE MetricType = 1
+	// SUMMARY must use the Metric field "summary".
+	MetricType_SUMMARY MetricType = 2
+	// UNTYPED must use the Metric field "untyped".
+	MetricType_UNTYPED MetricType = 3
+	// HISTOGRAM must use the Metric field "histogram".
+	MetricType_HISTOGRAM MetricType = 4
+	// GAUGE_HISTOGRAM must use the Metric field "histogram".
+	MetricType_GAUGE_HISTOGRAM MetricType = 5
+)
+
+// Enum value maps for MetricType.
+var (
+	MetricType_name = map[int32]string{
+		0: "COUNTER",
+		1: "GAUGE",
+		2: "SUMMARY",
+		3: "UNTYPED",
+		4: "HISTOGRAM",
+		5: "GAUGE_HISTOGRAM",
+	}
+	MetricType_value = map[string]int32{
+		"COUNTER":         0,
+		"GAUGE":           1,
+		"SUMMARY":         2,
+		"UNTYPED":         3,
+		"HISTOGRAM":       4,
+		"GAUGE_HISTOGRAM": 5,
+	}
+)
+
+func (x MetricType) Enum() *MetricType {
+	p := new(MetricType)
+	*p = x
+	return p
+}
+
+func (x MetricType) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (MetricType) Descriptor() protoreflect.EnumDescriptor {
+	return file_io_prometheus_client_metrics_proto_enumTypes[0].Descriptor()
+}
+
+func (MetricType) Type() protoreflect.EnumType {
+	return &file_io_prometheus_client_metrics_proto_enumTypes[0]
+}
+
+func (x MetricType) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Do not use.
+func (x *MetricType) UnmarshalJSON(b []byte) error {
+	num, err := protoimpl.X.UnmarshalJSONEnum(x.Descriptor(), b)
+	if err != nil {
+		return err
+	}
+	*x = MetricType(num)
+	return nil
+}
+
+// Deprecated: Use MetricType.Descriptor instead.
+func (MetricType) EnumDescriptor() ([]byte, []int) {
+	return file_io_prometheus_client_metrics_proto_rawDescGZIP(), []int{0}
+}
+
+type LabelPair struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Name  *string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
+	Value *string `protobuf:"bytes,2,opt,name=value" json:"value,omitempty"`
+}
+
+func (x *LabelPair) Reset() {
+	*x = LabelPair{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_io_prometheus_client_metrics_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *LabelPair) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*LabelPair) ProtoMessage() {}
+
+func (x *LabelPair) ProtoReflect() protoreflect.Message {
+	mi := &file_io_prometheus_client_metrics_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use LabelPair.ProtoReflect.Descriptor instead.
+func (*LabelPair) Descriptor() ([]byte, []int) {
+	return file_io_prometheus_client_metrics_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *LabelPair) GetName() string {
+	if x != nil && x.Name != nil {
+		return *x.Name
+	}
+	return ""
+}
+
+func (x *LabelPair) GetValue() string {
+	if x != nil && x.Value != nil {
+		return *x.Value
+	}
+	return ""
+}
+
+type Gauge struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Value *float64 `protobuf:"fixed64,1,opt,name=value" json:"value,omitempty"`
+}
+
+func (x *Gauge) Reset() {
+	*x = Gauge{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_io_prometheus_client_metrics_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Gauge) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Gauge) ProtoMessage() {}
+
+func (x *Gauge) ProtoReflect() protoreflect.Message {
+	mi := &file_io_prometheus_client_metrics_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Gauge.ProtoReflect.Descriptor instead.
+func (*Gauge) Descriptor() ([]byte, []int) {
+	return file_io_prometheus_client_metrics_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *Gauge) GetValue() float64 {
+	if x != nil && x.Value != nil {
+		return *x.Value
+	}
+	return 0
+}
+
+type Counter struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Value            *float64               `protobuf:"fixed64,1,opt,name=value" json:"value,omitempty"`
+	Exemplar         *Exemplar              `protobuf:"bytes,2,opt,name=exemplar" json:"exemplar,omitempty"`
+	CreatedTimestamp *timestamppb.Timestamp `protobuf:"bytes,3,opt,name=created_timestamp,json=createdTimestamp" json:"created_timestamp,omitempty"`
+}
+
+func (x *Counter) Reset() {
+	*x = Counter{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_io_prometheus_client_metrics_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Counter) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Counter) ProtoMessage() {}
+
+func (x *Counter) ProtoReflect() protoreflect.Message {
+	mi := &file_io_prometheus_client_metrics_proto_msgTypes[2]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Counter.ProtoReflect.Descriptor instead.
+func (*Counter) Descriptor() ([]byte, []int) {
+	return file_io_prometheus_client_metrics_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *Counter) GetValue() float64 {
+	if x != nil && x.Value != nil {
+		return *x.Value
+	}
+	return 0
+}
+
+func (x *Counter) GetExemplar() *Exemplar {
+	if x != nil {
+		return x.Exemplar
+	}
+	return nil
+}
+
+func (x *Counter) GetCreatedTimestamp() *timestamppb.Timestamp {
+	if x != nil {
+		return x.CreatedTimestamp
+	}
+	return nil
+}
+
+type Quantile struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Quantile *float64 `protobuf:"fixed64,1,opt,name=quantile" json:"quantile,omitempty"`
+	Value    *float64 `protobuf:"fixed64,2,opt,name=value" json:"value,omitempty"`
+}
+
+func (x *Quantile) Reset() {
+	*x = Quantile{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_io_prometheus_client_metrics_proto_msgTypes[3]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Quantile) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Quantile) ProtoMessage() {}
+
+func (x *Quantile) ProtoReflect() protoreflect.Message {
+	mi := &file_io_prometheus_client_metrics_proto_msgTypes[3]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Quantile.ProtoReflect.Descriptor instead.
+func (*Quantile) Descriptor() ([]byte, []int) {
+	return file_io_prometheus_client_metrics_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *Quantile) GetQuantile() float64 {
+	if x != nil && x.Quantile != nil {
+		return *x.Quantile
+	}
+	return 0
+}
+
+func (x *Quantile) GetValue() float64 {
+	if x != nil && x.Value != nil {
+		return *x.Value
+	}
+	return 0
+}
+
+type Summary struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	SampleCount      *uint64                `protobuf:"varint,1,opt,name=sample_count,json=sampleCount" json:"sample_count,omitempty"`
+	SampleSum        *float64               `protobuf:"fixed64,2,opt,name=sample_sum,json=sampleSum" json:"sample_sum,omitempty"`
+	Quantile         []*Quantile            `protobuf:"bytes,3,rep,name=quantile" json:"quantile,omitempty"`
+	CreatedTimestamp *timestamppb.Timestamp `protobuf:"bytes,4,opt,name=created_timestamp,json=createdTimestamp" json:"created_timestamp,omitempty"`
+}
+
+func (x *Summary) Reset() {
+	*x = Summary{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_io_prometheus_client_metrics_proto_msgTypes[4]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Summary) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Summary) ProtoMessage() {}
+
+func (x *Summary) ProtoReflect() protoreflect.Message {
+	mi := &file_io_prometheus_client_metrics_proto_msgTypes[4]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Summary.ProtoReflect.Descriptor instead.
+func (*Summary) Descriptor() ([]byte, []int) {
+	return file_io_prometheus_client_metrics_proto_rawDescGZIP(), []int{4}
+}
+
+func (x *Summary) GetSampleCount() uint64 {
+	if x != nil && x.SampleCount != nil {
+		return *x.SampleCount
+	}
+	return 0
+}
+
+func (x *Summary) GetSampleSum() float64 {
+	if x != nil && x.SampleSum != nil {
+		return *x.SampleSum
+	}
+	return 0
+}
+
+func (x *Summary) GetQuantile() []*Quantile {
+	if x != nil {
+		return x.Quantile
+	}
+	return nil
+}
+
+func (x *Summary) GetCreatedTimestamp() *timestamppb.Timestamp {
+	if x != nil {
+		return x.CreatedTimestamp
+	}
+	return nil
+}
+
+type Untyped struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Value *float64 `protobuf:"fixed64,1,opt,name=value" json:"value,omitempty"`
+}
+
+func (x *Untyped) Reset() {
+	*x = Untyped{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_io_prometheus_client_metrics_proto_msgTypes[5]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Untyped) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Untyped) ProtoMessage() {}
+
+func (x *Untyped) ProtoReflect() protoreflect.Message {
+	mi := &file_io_prometheus_client_metrics_proto_msgTypes[5]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Untyped.ProtoReflect.Descriptor instead.
+func (*Untyped) Descriptor() ([]byte, []int) {
+	return file_io_prometheus_client_metrics_proto_rawDescGZIP(), []int{5}
+}
+
+func (x *Untyped) GetValue() float64 {
+	if x != nil && x.Value != nil {
+		return *x.Value
+	}
+	return 0
+}
+
+type Histogram struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	SampleCount      *uint64  `protobuf:"varint,1,opt,name=sample_count,json=sampleCount" json:"sample_count,omitempty"`
+	SampleCountFloat *float64 `protobuf:"fixed64,4,opt,name=sample_count_float,json=sampleCountFloat" json:"sample_count_float,omitempty"` // Overrides sample_count if > 0.
+	SampleSum        *float64 `protobuf:"fixed64,2,opt,name=sample_sum,json=sampleSum" json:"sample_sum,omitempty"`
+	// Buckets for the conventional histogram.
+	Bucket           []*Bucket              `protobuf:"bytes,3,rep,name=bucket" json:"bucket,omitempty"` // Ordered in increasing order of upper_bound, +Inf bucket is optional.
+	CreatedTimestamp *timestamppb.Timestamp `protobuf:"bytes,15,opt,name=created_timestamp,json=createdTimestamp" json:"created_timestamp,omitempty"`
+	// schema defines the bucket schema. Currently, valid numbers are -4 <= n <= 8.
+	// They are all for base-2 bucket schemas, where 1 is a bucket boundary in each case, and
+	// then each power of two is divided into 2^n logarithmic buckets.
+	// Or in other words, each bucket boundary is the previous boundary times 2^(2^-n).
+	// In the future, more bucket schemas may be added using numbers < -4 or > 8.
+	Schema         *int32   `protobuf:"zigzag32,5,opt,name=schema" json:"schema,omitempty"`
+	ZeroThreshold  *float64 `protobuf:"fixed64,6,opt,name=zero_threshold,json=zeroThreshold" json:"zero_threshold,omitempty"`      // Breadth of the zero bucket.
+	ZeroCount      *uint64  `protobuf:"varint,7,opt,name=zero_count,json=zeroCount" json:"zero_count,omitempty"`                   // Count in zero bucket.
+	ZeroCountFloat *float64 `protobuf:"fixed64,8,opt,name=zero_count_float,json=zeroCountFloat" json:"zero_count_float,omitempty"` // Overrides sb_zero_count if > 0.
+	// Negative buckets for the native histogram.
+	NegativeSpan []*BucketSpan `protobuf:"bytes,9,rep,name=negative_span,json=negativeSpan" json:"negative_span,omitempty"`
+	// Use either "negative_delta" or "negative_count", the former for
+	// regular histograms with integer counts, the latter for float
+	// histograms.
+	NegativeDelta []int64   `protobuf:"zigzag64,10,rep,name=negative_delta,json=negativeDelta" json:"negative_delta,omitempty"` // Count delta of each bucket compared to previous one (or to zero for 1st bucket).
+	NegativeCount []float64 `protobuf:"fixed64,11,rep,name=negative_count,json=negativeCount" json:"negative_count,omitempty"`  // Absolute count of each bucket.
+	// Positive buckets for the native histogram.
+	// Use a no-op span (offset 0, length 0) for a native histogram without any
+	// observations yet and with a zero_threshold of 0. Otherwise, it would be
+	// indistinguishable from a classic histogram.
+	PositiveSpan []*BucketSpan `protobuf:"bytes,12,rep,name=positive_span,json=positiveSpan" json:"positive_span,omitempty"`
+	// Use either "positive_delta" or "positive_count", the former for
+	// regular histograms with integer counts, the latter for float
+	// histograms.
+	PositiveDelta []int64   `protobuf:"zigzag64,13,rep,name=positive_delta,json=positiveDelta" json:"positive_delta,omitempty"` // Count delta of each bucket compared to previous one (or to zero for 1st bucket).
+	PositiveCount []float64 `protobuf:"fixed64,14,rep,name=positive_count,json=positiveCount" json:"positive_count,omitempty"`  // Absolute count of each bucket.
+}
+
+func (x *Histogram) Reset() {
+	*x = Histogram{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_io_prometheus_client_metrics_proto_msgTypes[6]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Histogram) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Histogram) ProtoMessage() {}
+
+func (x *Histogram) ProtoReflect() protoreflect.Message {
+	mi := &file_io_prometheus_client_metrics_proto_msgTypes[6]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Histogram.ProtoReflect.Descriptor instead.
+func (*Histogram) Descriptor() ([]byte, []int) {
+	return file_io_prometheus_client_metrics_proto_rawDescGZIP(), []int{6}
+}
+
+func (x *Histogram) GetSampleCount() uint64 {
+	if x != nil && x.SampleCount != nil {
+		return *x.SampleCount
+	}
+	return 0
+}
+
+func (x *Histogram) GetSampleCountFloat() float64 {
+	if x != nil && x.SampleCountFloat != nil {
+		return *x.SampleCountFloat
+	}
+	return 0
+}
+
+func (x *Histogram) GetSampleSum() float64 {
+	if x != nil && x.SampleSum != nil {
+		return *x.SampleSum
+	}
+	return 0
+}
+
+func (x *Histogram) GetBucket() []*Bucket {
+	if x != nil {
+		return x.Bucket
+	}
+	return nil
+}
+
+func (x *Histogram) GetCreatedTimestamp() *timestamppb.Timestamp {
+	if x != nil {
+		return x.CreatedTimestamp
+	}
+	return nil
+}
+
+func (x *Histogram) GetSchema() int32 {
+	if x != nil && x.Schema != nil {
+		return *x.Schema
+	}
+	return 0
+}
+
+func (x *Histogram) GetZeroThreshold() float64 {
+	if x != nil && x.ZeroThreshold != nil {
+		return *x.ZeroThreshold
+	}
+	return 0
+}
+
+func (x *Histogram) GetZeroCount() uint64 {
+	if x != nil && x.ZeroCount != nil {
+		return *x.ZeroCount
+	}
+	return 0
+}
+
+func (x *Histogram) GetZeroCountFloat() float64 {
+	if x != nil && x.ZeroCountFloat != nil {
+		return *x.ZeroCountFloat
+	}
+	return 0
+}
+
+func (x *Histogram) GetNegativeSpan() []*BucketSpan {
+	if x != nil {
+		return x.NegativeSpan
+	}
+	return nil
+}
+
+func (x *Histogram) GetNegativeDelta() []int64 {
+	if x != nil {
+		return x.NegativeDelta
+	}
+	return nil
+}
+
+func (x *Histogram) GetNegativeCount() []float64 {
+	if x != nil {
+		return x.NegativeCount
+	}
+	return nil
+}
+
+func (x *Histogram) GetPositiveSpan() []*BucketSpan {
+	if x != nil {
+		return x.PositiveSpan
+	}
+	return nil
+}
+
+func (x *Histogram) GetPositiveDelta() []int64 {
+	if x != nil {
+		return x.PositiveDelta
+	}
+	return nil
+}
+
+func (x *Histogram) GetPositiveCount() []float64 {
+	if x != nil {
+		return x.PositiveCount
+	}
+	return nil
+}
+
+// A Bucket of a conventional histogram, each of which is treated as
+// an individual counter-like time series by Prometheus.
+type Bucket struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	CumulativeCount      *uint64   `protobuf:"varint,1,opt,name=cumulative_count,json=cumulativeCount" json:"cumulative_count,omitempty"`                   // Cumulative in increasing order.
+	CumulativeCountFloat *float64  `protobuf:"fixed64,4,opt,name=cumulative_count_float,json=cumulativeCountFloat" json:"cumulative_count_float,omitempty"` // Overrides cumulative_count if > 0.
+	UpperBound           *float64  `protobuf:"fixed64,2,opt,name=upper_bound,json=upperBound" json:"upper_bound,omitempty"`                                 // Inclusive.
+	Exemplar             *Exemplar `protobuf:"bytes,3,opt,name=exemplar" json:"exemplar,omitempty"`
+}
+
+func (x *Bucket) Reset() {
+	*x = Bucket{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_io_prometheus_client_metrics_proto_msgTypes[7]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Bucket) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Bucket) ProtoMessage() {}
+
+func (x *Bucket) ProtoReflect() protoreflect.Message {
+	mi := &file_io_prometheus_client_metrics_proto_msgTypes[7]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Bucket.ProtoReflect.Descriptor instead.
+func (*Bucket) Descriptor() ([]byte, []int) {
+	return file_io_prometheus_client_metrics_proto_rawDescGZIP(), []int{7}
+}
+
+func (x *Bucket) GetCumulativeCount() uint64 {
+	if x != nil && x.CumulativeCount != nil {
+		return *x.CumulativeCount
+	}
+	return 0
+}
+
+func (x *Bucket) GetCumulativeCountFloat() float64 {
+	if x != nil && x.CumulativeCountFloat != nil {
+		return *x.CumulativeCountFloat
+	}
+	return 0
+}
+
+func (x *Bucket) GetUpperBound() float64 {
+	if x != nil && x.UpperBound != nil {
+		return *x.UpperBound
+	}
+	return 0
+}
+
+func (x *Bucket) GetExemplar() *Exemplar {
+	if x != nil {
+		return x.Exemplar
+	}
+	return nil
+}
+
+// A BucketSpan defines a number of consecutive buckets in a native
+// histogram with their offset. Logically, it would be more
+// straightforward to include the bucket counts in the Span. However,
+// the protobuf representation is more compact in the way the data is
+// structured here (with all the buckets in a single array separate
+// from the Spans).
+type BucketSpan struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Offset *int32  `protobuf:"zigzag32,1,opt,name=offset" json:"offset,omitempty"` // Gap to previous span, or starting point for 1st span (which can be negative).
+	Length *uint32 `protobuf:"varint,2,opt,name=length" json:"length,omitempty"`   // Length of consecutive buckets.
+}
+
+func (x *BucketSpan) Reset() {
+	*x = BucketSpan{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_io_prometheus_client_metrics_proto_msgTypes[8]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *BucketSpan) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*BucketSpan) ProtoMessage() {}
+
+func (x *BucketSpan) ProtoReflect() protoreflect.Message {
+	mi := &file_io_prometheus_client_metrics_proto_msgTypes[8]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use BucketSpan.ProtoReflect.Descriptor instead.
+func (*BucketSpan) Descriptor() ([]byte, []int) {
+	return file_io_prometheus_client_metrics_proto_rawDescGZIP(), []int{8}
+}
+
+func (x *BucketSpan) GetOffset() int32 {
+	if x != nil && x.Offset != nil {
+		return *x.Offset
+	}
+	return 0
+}
+
+func (x *BucketSpan) GetLength() uint32 {
+	if x != nil && x.Length != nil {
+		return *x.Length
+	}
+	return 0
+}
+
+type Exemplar struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Label     []*LabelPair           `protobuf:"bytes,1,rep,name=label" json:"label,omitempty"`
+	Value     *float64               `protobuf:"fixed64,2,opt,name=value" json:"value,omitempty"`
+	Timestamp *timestamppb.Timestamp `protobuf:"bytes,3,opt,name=timestamp" json:"timestamp,omitempty"` // OpenMetrics-style.
+}
+
+func (x *Exemplar) Reset() {
+	*x = Exemplar{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_io_prometheus_client_metrics_proto_msgTypes[9]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Exemplar) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Exemplar) ProtoMessage() {}
+
+func (x *Exemplar) ProtoReflect() protoreflect.Message {
+	mi := &file_io_prometheus_client_metrics_proto_msgTypes[9]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Exemplar.ProtoReflect.Descriptor instead.
+func (*Exemplar) Descriptor() ([]byte, []int) {
+	return file_io_prometheus_client_metrics_proto_rawDescGZIP(), []int{9}
+}
+
+func (x *Exemplar) GetLabel() []*LabelPair {
+	if x != nil {
+		return x.Label
+	}
+	return nil
+}
+
+func (x *Exemplar) GetValue() float64 {
+	if x != nil && x.Value != nil {
+		return *x.Value
+	}
+	return 0
+}
+
+func (x *Exemplar) GetTimestamp() *timestamppb.Timestamp {
+	if x != nil {
+		return x.Timestamp
+	}
+	return nil
+}
+
+type Metric struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Label       []*LabelPair `protobuf:"bytes,1,rep,name=label" json:"label,omitempty"`
+	Gauge       *Gauge       `protobuf:"bytes,2,opt,name=gauge" json:"gauge,omitempty"`
+	Counter     *Counter     `protobuf:"bytes,3,opt,name=counter" json:"counter,omitempty"`
+	Summary     *Summary     `protobuf:"bytes,4,opt,name=summary" json:"summary,omitempty"`
+	Untyped     *Untyped     `protobuf:"bytes,5,opt,name=untyped" json:"untyped,omitempty"`
+	Histogram   *Histogram   `protobuf:"bytes,7,opt,name=histogram" json:"histogram,omitempty"`
+	TimestampMs *int64       `protobuf:"varint,6,opt,name=timestamp_ms,json=timestampMs" json:"timestamp_ms,omitempty"`
+}
+
+func (x *Metric) Reset() {
+	*x = Metric{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_io_prometheus_client_metrics_proto_msgTypes[10]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Metric) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Metric) ProtoMessage() {}
+
+func (x *Metric) ProtoReflect() protoreflect.Message {
+	mi := &file_io_prometheus_client_metrics_proto_msgTypes[10]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Metric.ProtoReflect.Descriptor instead.
+func (*Metric) Descriptor() ([]byte, []int) {
+	return file_io_prometheus_client_metrics_proto_rawDescGZIP(), []int{10}
+}
+
+func (x *Metric) GetLabel() []*LabelPair {
+	if x != nil {
+		return x.Label
+	}
+	return nil
+}
+
+func (x *Metric) GetGauge() *Gauge {
+	if x != nil {
+		return x.Gauge
+	}
+	return nil
+}
+
+func (x *Metric) GetCounter() *Counter {
+	if x != nil {
+		return x.Counter
+	}
+	return nil
+}
+
+func (x *Metric) GetSummary() *Summary {
+	if x != nil {
+		return x.Summary
+	}
+	return nil
+}
+
+func (x *Metric) GetUntyped() *Untyped {
+	if x != nil {
+		return x.Untyped
+	}
+	return nil
+}
+
+func (x *Metric) GetHistogram() *Histogram {
+	if x != nil {
+		return x.Histogram
+	}
+	return nil
+}
+
+func (x *Metric) GetTimestampMs() int64 {
+	if x != nil && x.TimestampMs != nil {
+		return *x.TimestampMs
+	}
+	return 0
+}
+
+type MetricFamily struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Name   *string     `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
+	Help   *string     `protobuf:"bytes,2,opt,name=help" json:"help,omitempty"`
+	Type   *MetricType `protobuf:"varint,3,opt,name=type,enum=io.prometheus.client.MetricType" json:"type,omitempty"`
+	Metric []*Metric   `protobuf:"bytes,4,rep,name=metric" json:"metric,omitempty"`
+}
+
+func (x *MetricFamily) Reset() {
+	*x = MetricFamily{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_io_prometheus_client_metrics_proto_msgTypes[11]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *MetricFamily) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*MetricFamily) ProtoMessage() {}
+
+func (x *MetricFamily) ProtoReflect() protoreflect.Message {
+	mi := &file_io_prometheus_client_metrics_proto_msgTypes[11]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use MetricFamily.ProtoReflect.Descriptor instead.
+func (*MetricFamily) Descriptor() ([]byte, []int) {
+	return file_io_prometheus_client_metrics_proto_rawDescGZIP(), []int{11}
+}
+
+func (x *MetricFamily) GetName() string {
+	if x != nil && x.Name != nil {
+		return *x.Name
+	}
+	return ""
+}
+
+func (x *MetricFamily) GetHelp() string {
+	if x != nil && x.Help != nil {
+		return *x.Help
+	}
+	return ""
+}
+
+func (x *MetricFamily) GetType() MetricType {
+	if x != nil && x.Type != nil {
+		return *x.Type
+	}
+	return MetricType_COUNTER
+}
+
+func (x *MetricFamily) GetMetric() []*Metric {
+	if x != nil {
+		return x.Metric
+	}
+	return nil
+}
+
+var File_io_prometheus_client_metrics_proto protoreflect.FileDescriptor
+
+var file_io_prometheus_client_metrics_proto_rawDesc = []byte{
+	0x0a, 0x22, 0x69, 0x6f, 0x2f, 0x70, 0x72, 0x6f, 0x6d, 0x65, 0x74, 0x68, 0x65, 0x75, 0x73, 0x2f,
+	0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x2f, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x2e, 0x70,
+	0x72, 0x6f, 0x74, 0x6f, 0x12, 0x14, 0x69, 0x6f, 0x2e, 0x70, 0x72, 0x6f, 0x6d, 0x65, 0x74, 0x68,
+	0x65, 0x75, 0x73, 0x2e, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x1a, 0x1f, 0x67, 0x6f, 0x6f, 0x67,
+	0x6c, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x74, 0x69, 0x6d, 0x65,
+	0x73, 0x74, 0x61, 0x6d, 0x70, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0x35, 0x0a, 0x09, 0x4c,
+	0x61, 0x62, 0x65, 0x6c, 0x50, 0x61, 0x69, 0x72, 0x12, 0x12, 0x0a, 0x04, 0x6e, 0x61, 0x6d, 0x65,
+	0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x12, 0x14, 0x0a, 0x05,
+	0x76, 0x61, 0x6c, 0x75, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x76, 0x61, 0x6c,
+	0x75, 0x65, 0x22, 0x1d, 0x0a, 0x05, 0x47, 0x61, 0x75, 0x67, 0x65, 0x12, 0x14, 0x0a, 0x05, 0x76,
+	0x61, 0x6c, 0x75, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x01, 0x52, 0x05, 0x76, 0x61, 0x6c, 0x75,
+	0x65, 0x22, 0xa4, 0x01, 0x0a, 0x07, 0x43, 0x6f, 0x75, 0x6e, 0x74, 0x65, 0x72, 0x12, 0x14, 0x0a,
+	0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x01, 0x52, 0x05, 0x76, 0x61,
+	0x6c, 0x75, 0x65, 0x12, 0x3a, 0x0a, 0x08, 0x65, 0x78, 0x65, 0x6d, 0x70, 0x6c, 0x61, 0x72, 0x18,
+	0x02, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x1e, 0x2e, 0x69, 0x6f, 0x2e, 0x70, 0x72, 0x6f, 0x6d, 0x65,
+	0x74, 0x68, 0x65, 0x75, 0x73, 0x2e, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x2e, 0x45, 0x78, 0x65,
+	0x6d, 0x70, 0x6c, 0x61, 0x72, 0x52, 0x08, 0x65, 0x78, 0x65, 0x6d, 0x70, 0x6c, 0x61, 0x72, 0x12,
+	0x47, 0x0a, 0x11, 0x63, 0x72, 0x65, 0x61, 0x74, 0x65, 0x64, 0x5f, 0x74, 0x69, 0x6d, 0x65, 0x73,
+	0x74, 0x61, 0x6d, 0x70, 0x18, 0x03, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x1a, 0x2e, 0x67, 0x6f, 0x6f,
+	0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e, 0x54, 0x69, 0x6d,
+	0x65, 0x73, 0x74, 0x61, 0x6d, 0x70, 0x52, 0x10, 0x63, 0x72, 0x65, 0x61, 0x74, 0x65, 0x64, 0x54,
+	0x69, 0x6d, 0x65, 0x73, 0x74, 0x61, 0x6d, 0x70, 0x22, 0x3c, 0x0a, 0x08, 0x51, 0x75, 0x61, 0x6e,
+	0x74, 0x69, 0x6c, 0x65, 0x12, 0x1a, 0x0a, 0x08, 0x71, 0x75, 0x61, 0x6e, 0x74, 0x69, 0x6c, 0x65,
+	0x18, 0x01, 0x20, 0x01, 0x28, 0x01, 0x52, 0x08, 0x71, 0x75, 0x61, 0x6e, 0x74, 0x69, 0x6c, 0x65,
+	0x12, 0x14, 0x0a, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x01, 0x52,
+	0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x22, 0xd0, 0x01, 0x0a, 0x07, 0x53, 0x75, 0x6d, 0x6d, 0x61,
+	0x72, 0x79, 0x12, 0x21, 0x0a, 0x0c, 0x73, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x5f, 0x63, 0x6f, 0x75,
+	0x6e, 0x74, 0x18, 0x01, 0x20, 0x01, 0x28, 0x04, 0x52, 0x0b, 0x73, 0x61, 0x6d, 0x70, 0x6c, 0x65,
+	0x43, 0x6f, 0x75, 0x6e, 0x74, 0x12, 0x1d, 0x0a, 0x0a, 0x73, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x5f,
+	0x73, 0x75, 0x6d, 0x18, 0x02, 0x20, 0x01, 0x28, 0x01, 0x52, 0x09, 0x73, 0x61, 0x6d, 0x70, 0x6c,
+	0x65, 0x53, 0x75, 0x6d, 0x12, 0x3a, 0x0a, 0x08, 0x71, 0x75, 0x61, 0x6e, 0x74, 0x69, 0x6c, 0x65,
+	0x18, 0x03, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x1e, 0x2e, 0x69, 0x6f, 0x2e, 0x70, 0x72, 0x6f, 0x6d,
+	0x65, 0x74, 0x68, 0x65, 0x75, 0x73, 0x2e, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x2e, 0x51, 0x75,
+	0x61, 0x6e, 0x74, 0x69, 0x6c, 0x65, 0x52, 0x08, 0x71, 0x75, 0x61, 0x6e, 0x74, 0x69, 0x6c, 0x65,
+	0x12, 0x47, 0x0a, 0x11, 0x63, 0x72, 0x65, 0x61, 0x74, 0x65, 0x64, 0x5f, 0x74, 0x69, 0x6d, 0x65,
+	0x73, 0x74, 0x61, 0x6d, 0x70, 0x18, 0x04, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x1a, 0x2e, 0x67, 0x6f,
+	0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e, 0x54, 0x69,
+	0x6d, 0x65, 0x73, 0x74, 0x61, 0x6d, 0x70, 0x52, 0x10, 0x63, 0x72, 0x65, 0x61, 0x74, 0x65, 0x64,
+	0x54, 0x69, 0x6d, 0x65, 0x73, 0x74, 0x61, 0x6d, 0x70, 0x22, 0x1f, 0x0a, 0x07, 0x55, 0x6e, 0x74,
+	0x79, 0x70, 0x65, 0x64, 0x12, 0x14, 0x0a, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x18, 0x01, 0x20,
+	0x01, 0x28, 0x01, 0x52, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x22, 0xac, 0x05, 0x0a, 0x09, 0x48,
+	0x69, 0x73, 0x74, 0x6f, 0x67, 0x72, 0x61, 0x6d, 0x12, 0x21, 0x0a, 0x0c, 0x73, 0x61, 0x6d, 0x70,
+	0x6c, 0x65, 0x5f, 0x63, 0x6f, 0x75, 0x6e, 0x74, 0x18, 0x01, 0x20, 0x01, 0x28, 0x04, 0x52, 0x0b,
+	0x73, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x43, 0x6f, 0x75, 0x6e, 0x74, 0x12, 0x2c, 0x0a, 0x12, 0x73,
+	0x61, 0x6d, 0x70, 0x6c, 0x65, 0x5f, 0x63, 0x6f, 0x75, 0x6e, 0x74, 0x5f, 0x66, 0x6c, 0x6f, 0x61,
+	0x74, 0x18, 0x04, 0x20, 0x01, 0x28, 0x01, 0x52, 0x10, 0x73, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x43,
+	0x6f, 0x75, 0x6e, 0x74, 0x46, 0x6c, 0x6f, 0x61, 0x74, 0x12, 0x1d, 0x0a, 0x0a, 0x73, 0x61, 0x6d,
+	0x70, 0x6c, 0x65, 0x5f, 0x73, 0x75, 0x6d, 0x18, 0x02, 0x20, 0x01, 0x28, 0x01, 0x52, 0x09, 0x73,
+	0x61, 0x6d, 0x70, 0x6c, 0x65, 0x53, 0x75, 0x6d, 0x12, 0x34, 0x0a, 0x06, 0x62, 0x75, 0x63, 0x6b,
+	0x65, 0x74, 0x18, 0x03, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x1c, 0x2e, 0x69, 0x6f, 0x2e, 0x70, 0x72,
+	0x6f, 0x6d, 0x65, 0x74, 0x68, 0x65, 0x75, 0x73, 0x2e, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x2e,
+	0x42, 0x75, 0x63, 0x6b, 0x65, 0x74, 0x52, 0x06, 0x62, 0x75, 0x63, 0x6b, 0x65, 0x74, 0x12, 0x47,
+	0x0a, 0x11, 0x63, 0x72, 0x65, 0x61, 0x74, 0x65, 0x64, 0x5f, 0x74, 0x69, 0x6d, 0x65, 0x73, 0x74,
+	0x61, 0x6d, 0x70, 0x18, 0x0f, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x1a, 0x2e, 0x67, 0x6f, 0x6f, 0x67,
+	0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e, 0x54, 0x69, 0x6d, 0x65,
+	0x73, 0x74, 0x61, 0x6d, 0x70, 0x52, 0x10, 0x63, 0x72, 0x65, 0x61, 0x74, 0x65, 0x64, 0x54, 0x69,
+	0x6d, 0x65, 0x73, 0x74, 0x61, 0x6d, 0x70, 0x12, 0x16, 0x0a, 0x06, 0x73, 0x63, 0x68, 0x65, 0x6d,
+	0x61, 0x18, 0x05, 0x20, 0x01, 0x28, 0x11, 0x52, 0x06, 0x73, 0x63, 0x68, 0x65, 0x6d, 0x61, 0x12,
+	0x25, 0x0a, 0x0e, 0x7a, 0x65, 0x72, 0x6f, 0x5f, 0x74, 0x68, 0x72, 0x65, 0x73, 0x68, 0x6f, 0x6c,
+	0x64, 0x18, 0x06, 0x20, 0x01, 0x28, 0x01, 0x52, 0x0d, 0x7a, 0x65, 0x72, 0x6f, 0x54, 0x68, 0x72,
+	0x65, 0x73, 0x68, 0x6f, 0x6c, 0x64, 0x12, 0x1d, 0x0a, 0x0a, 0x7a, 0x65, 0x72, 0x6f, 0x5f, 0x63,
+	0x6f, 0x75, 0x6e, 0x74, 0x18, 0x07, 0x20, 0x01, 0x28, 0x04, 0x52, 0x09, 0x7a, 0x65, 0x72, 0x6f,
+	0x43, 0x6f, 0x75, 0x6e, 0x74, 0x12, 0x28, 0x0a, 0x10, 0x7a, 0x65, 0x72, 0x6f, 0x5f, 0x63, 0x6f,
+	0x75, 0x6e, 0x74, 0x5f, 0x66, 0x6c, 0x6f, 0x61, 0x74, 0x18, 0x08, 0x20, 0x01, 0x28, 0x01, 0x52,
+	0x0e, 0x7a, 0x65, 0x72, 0x6f, 0x43, 0x6f, 0x75, 0x6e, 0x74, 0x46, 0x6c, 0x6f, 0x61, 0x74, 0x12,
+	0x45, 0x0a, 0x0d, 0x6e, 0x65, 0x67, 0x61, 0x74, 0x69, 0x76, 0x65, 0x5f, 0x73, 0x70, 0x61, 0x6e,
+	0x18, 0x09, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x20, 0x2e, 0x69, 0x6f, 0x2e, 0x70, 0x72, 0x6f, 0x6d,
+	0x65, 0x74, 0x68, 0x65, 0x75, 0x73, 0x2e, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x2e, 0x42, 0x75,
+	0x63, 0x6b, 0x65, 0x74, 0x53, 0x70, 0x61, 0x6e, 0x52, 0x0c, 0x6e, 0x65, 0x67, 0x61, 0x74, 0x69,
+	0x76, 0x65, 0x53, 0x70, 0x61, 0x6e, 0x12, 0x25, 0x0a, 0x0e, 0x6e, 0x65, 0x67, 0x61, 0x74, 0x69,
+	0x76, 0x65, 0x5f, 0x64, 0x65, 0x6c, 0x74, 0x61, 0x18, 0x0a, 0x20, 0x03, 0x28, 0x12, 0x52, 0x0d,
+	0x6e, 0x65, 0x67, 0x61, 0x74, 0x69, 0x76, 0x65, 0x44, 0x65, 0x6c, 0x74, 0x61, 0x12, 0x25, 0x0a,
+	0x0e, 0x6e, 0x65, 0x67, 0x61, 0x74, 0x69, 0x76, 0x65, 0x5f, 0x63, 0x6f, 0x75, 0x6e, 0x74, 0x18,
+	0x0b, 0x20, 0x03, 0x28, 0x01, 0x52, 0x0d, 0x6e, 0x65, 0x67, 0x61, 0x74, 0x69, 0x76, 0x65, 0x43,
+	0x6f, 0x75, 0x6e, 0x74, 0x12, 0x45, 0x0a, 0x0d, 0x70, 0x6f, 0x73, 0x69, 0x74, 0x69, 0x76, 0x65,
+	0x5f, 0x73, 0x70, 0x61, 0x6e, 0x18, 0x0c, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x20, 0x2e, 0x69, 0x6f,
+	0x2e, 0x70, 0x72, 0x6f, 0x6d, 0x65, 0x74, 0x68, 0x65, 0x75, 0x73, 0x2e, 0x63, 0x6c, 0x69, 0x65,
+	0x6e, 0x74, 0x2e, 0x42, 0x75, 0x63, 0x6b, 0x65, 0x74, 0x53, 0x70, 0x61, 0x6e, 0x52, 0x0c, 0x70,
+	0x6f, 0x73, 0x69, 0x74, 0x69, 0x76, 0x65, 0x53, 0x70, 0x61, 0x6e, 0x12, 0x25, 0x0a, 0x0e, 0x70,
+	0x6f, 0x73, 0x69, 0x74, 0x69, 0x76, 0x65, 0x5f, 0x64, 0x65, 0x6c, 0x74, 0x61, 0x18, 0x0d, 0x20,
+	0x03, 0x28, 0x12, 0x52, 0x0d, 0x70, 0x6f, 0x73, 0x69, 0x74, 0x69, 0x76, 0x65, 0x44, 0x65, 0x6c,
+	0x74, 0x61, 0x12, 0x25, 0x0a, 0x0e, 0x70, 0x6f, 0x73, 0x69, 0x74, 0x69, 0x76, 0x65, 0x5f, 0x63,
+	0x6f, 0x75, 0x6e, 0x74, 0x18, 0x0e, 0x20, 0x03, 0x28, 0x01, 0x52, 0x0d, 0x70, 0x6f, 0x73, 0x69,
+	0x74, 0x69, 0x76, 0x65, 0x43, 0x6f, 0x75, 0x6e, 0x74, 0x22, 0xc6, 0x01, 0x0a, 0x06, 0x42, 0x75,
+	0x63, 0x6b, 0x65, 0x74, 0x12, 0x29, 0x0a, 0x10, 0x63, 0x75, 0x6d, 0x75, 0x6c, 0x61, 0x74, 0x69,
+	0x76, 0x65, 0x5f, 0x63, 0x6f, 0x75, 0x6e, 0x74, 0x18, 0x01, 0x20, 0x01, 0x28, 0x04, 0x52, 0x0f,
+	0x63, 0x75, 0x6d, 0x75, 0x6c, 0x61, 0x74, 0x69, 0x76, 0x65, 0x43, 0x6f, 0x75, 0x6e, 0x74, 0x12,
+	0x34, 0x0a, 0x16, 0x63, 0x75, 0x6d, 0x75, 0x6c, 0x61, 0x74, 0x69, 0x76, 0x65, 0x5f, 0x63, 0x6f,
+	0x75, 0x6e, 0x74, 0x5f, 0x66, 0x6c, 0x6f, 0x61, 0x74, 0x18, 0x04, 0x20, 0x01, 0x28, 0x01, 0x52,
+	0x14, 0x63, 0x75, 0x6d, 0x75, 0x6c, 0x61, 0x74, 0x69, 0x76, 0x65, 0x43, 0x6f, 0x75, 0x6e, 0x74,
+	0x46, 0x6c, 0x6f, 0x61, 0x74, 0x12, 0x1f, 0x0a, 0x0b, 0x75, 0x70, 0x70, 0x65, 0x72, 0x5f, 0x62,
+	0x6f, 0x75, 0x6e, 0x64, 0x18, 0x02, 0x20, 0x01, 0x28, 0x01, 0x52, 0x0a, 0x75, 0x70, 0x70, 0x65,
+	0x72, 0x42, 0x6f, 0x75, 0x6e, 0x64, 0x12, 0x3a, 0x0a, 0x08, 0x65, 0x78, 0x65, 0x6d, 0x70, 0x6c,
+	0x61, 0x72, 0x18, 0x03, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x1e, 0x2e, 0x69, 0x6f, 0x2e, 0x70, 0x72,
+	0x6f, 0x6d, 0x65, 0x74, 0x68, 0x65, 0x75, 0x73, 0x2e, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x2e,
+	0x45, 0x78, 0x65, 0x6d, 0x70, 0x6c, 0x61, 0x72, 0x52, 0x08, 0x65, 0x78, 0x65, 0x6d, 0x70, 0x6c,
+	0x61, 0x72, 0x22, 0x3c, 0x0a, 0x0a, 0x42, 0x75, 0x63, 0x6b, 0x65, 0x74, 0x53, 0x70, 0x61, 0x6e,
+	0x12, 0x16, 0x0a, 0x06, 0x6f, 0x66, 0x66, 0x73, 0x65, 0x74, 0x18, 0x01, 0x20, 0x01, 0x28, 0x11,
+	0x52, 0x06, 0x6f, 0x66, 0x66, 0x73, 0x65, 0x74, 0x12, 0x16, 0x0a, 0x06, 0x6c, 0x65, 0x6e, 0x67,
+	0x74, 0x68, 0x18, 0x02, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x06, 0x6c, 0x65, 0x6e, 0x67, 0x74, 0x68,
+	0x22, 0x91, 0x01, 0x0a, 0x08, 0x45, 0x78, 0x65, 0x6d, 0x70, 0x6c, 0x61, 0x72, 0x12, 0x35, 0x0a,
+	0x05, 0x6c, 0x61, 0x62, 0x65, 0x6c, 0x18, 0x01, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x1f, 0x2e, 0x69,
+	0x6f, 0x2e, 0x70, 0x72, 0x6f, 0x6d, 0x65, 0x74, 0x68, 0x65, 0x75, 0x73, 0x2e, 0x63, 0x6c, 0x69,
+	0x65, 0x6e, 0x74, 0x2e, 0x4c, 0x61, 0x62, 0x65, 0x6c, 0x50, 0x61, 0x69, 0x72, 0x52, 0x05, 0x6c,
+	0x61, 0x62, 0x65, 0x6c, 0x12, 0x14, 0x0a, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x18, 0x02, 0x20,
+	0x01, 0x28, 0x01, 0x52, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x12, 0x38, 0x0a, 0x09, 0x74, 0x69,
+	0x6d, 0x65, 0x73, 0x74, 0x61, 0x6d, 0x70, 0x18, 0x03, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x1a, 0x2e,
+	0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e,
+	0x54, 0x69, 0x6d, 0x65, 0x73, 0x74, 0x61, 0x6d, 0x70, 0x52, 0x09, 0x74, 0x69, 0x6d, 0x65, 0x73,
+	0x74, 0x61, 0x6d, 0x70, 0x22, 0xff, 0x02, 0x0a, 0x06, 0x4d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x12,
+	0x35, 0x0a, 0x05, 0x6c, 0x61, 0x62, 0x65, 0x6c, 0x18, 0x01, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x1f,
+	0x2e, 0x69, 0x6f, 0x2e, 0x70, 0x72, 0x6f, 0x6d, 0x65, 0x74, 0x68, 0x65, 0x75, 0x73, 0x2e, 0x63,
+	0x6c, 0x69, 0x65, 0x6e, 0x74, 0x2e, 0x4c, 0x61, 0x62, 0x65, 0x6c, 0x50, 0x61, 0x69, 0x72, 0x52,
+	0x05, 0x6c, 0x61, 0x62, 0x65, 0x6c, 0x12, 0x31, 0x0a, 0x05, 0x67, 0x61, 0x75, 0x67, 0x65, 0x18,
+	0x02, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x1b, 0x2e, 0x69, 0x6f, 0x2e, 0x70, 0x72, 0x6f, 0x6d, 0x65,
+	0x74, 0x68, 0x65, 0x75, 0x73, 0x2e, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x2e, 0x47, 0x61, 0x75,
+	0x67, 0x65, 0x52, 0x05, 0x67, 0x61, 0x75, 0x67, 0x65, 0x12, 0x37, 0x0a, 0x07, 0x63, 0x6f, 0x75,
+	0x6e, 0x74, 0x65, 0x72, 0x18, 0x03, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x1d, 0x2e, 0x69, 0x6f, 0x2e,
+	0x70, 0x72, 0x6f, 0x6d, 0x65, 0x74, 0x68, 0x65, 0x75, 0x73, 0x2e, 0x63, 0x6c, 0x69, 0x65, 0x6e,
+	0x74, 0x2e, 0x43, 0x6f, 0x75, 0x6e, 0x74, 0x65, 0x72, 0x52, 0x07, 0x63, 0x6f, 0x75, 0x6e, 0x74,
+	0x65, 0x72, 0x12, 0x37, 0x0a, 0x07, 0x73, 0x75, 0x6d, 0x6d, 0x61, 0x72, 0x79, 0x18, 0x04, 0x20,
+	0x01, 0x28, 0x0b, 0x32, 0x1d, 0x2e, 0x69, 0x6f, 0x2e, 0x70, 0x72, 0x6f, 0x6d, 0x65, 0x74, 0x68,
+	0x65, 0x75, 0x73, 0x2e, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x2e, 0x53, 0x75, 0x6d, 0x6d, 0x61,
+	0x72, 0x79, 0x52, 0x07, 0x73, 0x75, 0x6d, 0x6d, 0x61, 0x72, 0x79, 0x12, 0x37, 0x0a, 0x07, 0x75,
+	0x6e, 0x74, 0x79, 0x70, 0x65, 0x64, 0x18, 0x05, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x1d, 0x2e, 0x69,
+	0x6f, 0x2e, 0x70, 0x72, 0x6f, 0x6d, 0x65, 0x74, 0x68, 0x65, 0x75, 0x73, 0x2e, 0x63, 0x6c, 0x69,
+	0x65, 0x6e, 0x74, 0x2e, 0x55, 0x6e, 0x74, 0x79, 0x70, 0x65, 0x64, 0x52, 0x07, 0x75, 0x6e, 0x74,
+	0x79, 0x70, 0x65, 0x64, 0x12, 0x3d, 0x0a, 0x09, 0x68, 0x69, 0x73, 0x74, 0x6f, 0x67, 0x72, 0x61,
+	0x6d, 0x18, 0x07, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x1f, 0x2e, 0x69, 0x6f, 0x2e, 0x70, 0x72, 0x6f,
+	0x6d, 0x65, 0x74, 0x68, 0x65, 0x75, 0x73, 0x2e, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x2e, 0x48,
+	0x69, 0x73, 0x74, 0x6f, 0x67, 0x72, 0x61, 0x6d, 0x52, 0x09, 0x68, 0x69, 0x73, 0x74, 0x6f, 0x67,
+	0x72, 0x61, 0x6d, 0x12, 0x21, 0x0a, 0x0c, 0x74, 0x69, 0x6d, 0x65, 0x73, 0x74, 0x61, 0x6d, 0x70,
+	0x5f, 0x6d, 0x73, 0x18, 0x06, 0x20, 0x01, 0x28, 0x03, 0x52, 0x0b, 0x74, 0x69, 0x6d, 0x65, 0x73,
+	0x74, 0x61, 0x6d, 0x70, 0x4d, 0x73, 0x22, 0xa2, 0x01, 0x0a, 0x0c, 0x4d, 0x65, 0x74, 0x72, 0x69,
+	0x63, 0x46, 0x61, 0x6d, 0x69, 0x6c, 0x79, 0x12, 0x12, 0x0a, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x18,
+	0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x12, 0x12, 0x0a, 0x04, 0x68,
+	0x65, 0x6c, 0x70, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x68, 0x65, 0x6c, 0x70, 0x12,
+	0x34, 0x0a, 0x04, 0x74, 0x79, 0x70, 0x65, 0x18, 0x03, 0x20, 0x01, 0x28, 0x0e, 0x32, 0x20, 0x2e,
+	0x69, 0x6f, 0x2e, 0x70, 0x72, 0x6f, 0x6d, 0x65, 0x74, 0x68, 0x65, 0x75, 0x73, 0x2e, 0x63, 0x6c,
+	0x69, 0x65, 0x6e, 0x74, 0x2e, 0x4d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x54, 0x79, 0x70, 0x65, 0x52,
+	0x04, 0x74, 0x79, 0x70, 0x65, 0x12, 0x34, 0x0a, 0x06, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x18,
+	0x04, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x1c, 0x2e, 0x69, 0x6f, 0x2e, 0x70, 0x72, 0x6f, 0x6d, 0x65,
+	0x74, 0x68, 0x65, 0x75, 0x73, 0x2e, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x2e, 0x4d, 0x65, 0x74,
+	0x72, 0x69, 0x63, 0x52, 0x06, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x2a, 0x62, 0x0a, 0x0a, 0x4d,
+	0x65, 0x74, 0x72, 0x69, 0x63, 0x54, 0x79, 0x70, 0x65, 0x12, 0x0b, 0x0a, 0x07, 0x43, 0x4f, 0x55,
+	0x4e, 0x54, 0x45, 0x52, 0x10, 0x00, 0x12, 0x09, 0x0a, 0x05, 0x47, 0x41, 0x55, 0x47, 0x45, 0x10,
+	0x01, 0x12, 0x0b, 0x0a, 0x07, 0x53, 0x55, 0x4d, 0x4d, 0x41, 0x52, 0x59, 0x10, 0x02, 0x12, 0x0b,
+	0x0a, 0x07, 0x55, 0x4e, 0x54, 0x59, 0x50, 0x45, 0x44, 0x10, 0x03, 0x12, 0x0d, 0x0a, 0x09, 0x48,
+	0x49, 0x53, 0x54, 0x4f, 0x47, 0x52, 0x41, 0x4d, 0x10, 0x04, 0x12, 0x13, 0x0a, 0x0f, 0x47, 0x41,
+	0x55, 0x47, 0x45, 0x5f, 0x48, 0x49, 0x53, 0x54, 0x4f, 0x47, 0x52, 0x41, 0x4d, 0x10, 0x05, 0x42,
+	0x52, 0x0a, 0x14, 0x69, 0x6f, 0x2e, 0x70, 0x72, 0x6f, 0x6d, 0x65, 0x74, 0x68, 0x65, 0x75, 0x73,
+	0x2e, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x5a, 0x3a, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e,
+	0x63, 0x6f, 0x6d, 0x2f, 0x70, 0x72, 0x6f, 0x6d, 0x65, 0x74, 0x68, 0x65, 0x75, 0x73, 0x2f, 0x63,
+	0x6c, 0x69, 0x65, 0x6e, 0x74, 0x5f, 0x6d, 0x6f, 0x64, 0x65, 0x6c, 0x2f, 0x67, 0x6f, 0x3b, 0x69,
+	0x6f, 0x5f, 0x70, 0x72, 0x6f, 0x6d, 0x65, 0x74, 0x68, 0x65, 0x75, 0x73, 0x5f, 0x63, 0x6c, 0x69,
+	0x65, 0x6e, 0x74,
+}
+
+var (
+	file_io_prometheus_client_metrics_proto_rawDescOnce sync.Once
+	file_io_prometheus_client_metrics_proto_rawDescData = file_io_prometheus_client_metrics_proto_rawDesc
+)
+
+func file_io_prometheus_client_metrics_proto_rawDescGZIP() []byte {
+	file_io_prometheus_client_metrics_proto_rawDescOnce.Do(func() {
+		file_io_prometheus_client_metrics_proto_rawDescData = protoimpl.X.CompressGZIP(file_io_prometheus_client_metrics_proto_rawDescData)
+	})
+	return file_io_prometheus_client_metrics_proto_rawDescData
+}
+
+var file_io_prometheus_client_metrics_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
+var file_io_prometheus_client_metrics_proto_msgTypes = make([]protoimpl.MessageInfo, 12)
+var file_io_prometheus_client_metrics_proto_goTypes = []interface{}{
+	(MetricType)(0),               // 0: io.prometheus.client.MetricType
+	(*LabelPair)(nil),             // 1: io.prometheus.client.LabelPair
+	(*Gauge)(nil),                 // 2: io.prometheus.client.Gauge
+	(*Counter)(nil),               // 3: io.prometheus.client.Counter
+	(*Quantile)(nil),              // 4: io.prometheus.client.Quantile
+	(*Summary)(nil),               // 5: io.prometheus.client.Summary
+	(*Untyped)(nil),               // 6: io.prometheus.client.Untyped
+	(*Histogram)(nil),             // 7: io.prometheus.client.Histogram
+	(*Bucket)(nil),                // 8: io.prometheus.client.Bucket
+	(*BucketSpan)(nil),            // 9: io.prometheus.client.BucketSpan
+	(*Exemplar)(nil),              // 10: io.prometheus.client.Exemplar
+	(*Metric)(nil),                // 11: io.prometheus.client.Metric
+	(*MetricFamily)(nil),          // 12: io.prometheus.client.MetricFamily
+	(*timestamppb.Timestamp)(nil), // 13: google.protobuf.Timestamp
+}
+var file_io_prometheus_client_metrics_proto_depIdxs = []int32{
+	10, // 0: io.prometheus.client.Counter.exemplar:type_name -> io.prometheus.client.Exemplar
+	13, // 1: io.prometheus.client.Counter.created_timestamp:type_name -> google.protobuf.Timestamp
+	4,  // 2: io.prometheus.client.Summary.quantile:type_name -> io.prometheus.client.Quantile
+	13, // 3: io.prometheus.client.Summary.created_timestamp:type_name -> google.protobuf.Timestamp
+	8,  // 4: io.prometheus.client.Histogram.bucket:type_name -> io.prometheus.client.Bucket
+	13, // 5: io.prometheus.client.Histogram.created_timestamp:type_name -> google.protobuf.Timestamp
+	9,  // 6: io.prometheus.client.Histogram.negative_span:type_name -> io.prometheus.client.BucketSpan
+	9,  // 7: io.prometheus.client.Histogram.positive_span:type_name -> io.prometheus.client.BucketSpan
+	10, // 8: io.prometheus.client.Bucket.exemplar:type_name -> io.prometheus.client.Exemplar
+	1,  // 9: io.prometheus.client.Exemplar.label:type_name -> io.prometheus.client.LabelPair
+	13, // 10: io.prometheus.client.Exemplar.timestamp:type_name -> google.protobuf.Timestamp
+	1,  // 11: io.prometheus.client.Metric.label:type_name -> io.prometheus.client.LabelPair
+	2,  // 12: io.prometheus.client.Metric.gauge:type_name -> io.prometheus.client.Gauge
+	3,  // 13: io.prometheus.client.Metric.counter:type_name -> io.prometheus.client.Counter
+	5,  // 14: io.prometheus.client.Metric.summary:type_name -> io.prometheus.client.Summary
+	6,  // 15: io.prometheus.client.Metric.untyped:type_name -> io.prometheus.client.Untyped
+	7,  // 16: io.prometheus.client.Metric.histogram:type_name -> io.prometheus.client.Histogram
+	0,  // 17: io.prometheus.client.MetricFamily.type:type_name -> io.prometheus.client.MetricType
+	11, // 18: io.prometheus.client.MetricFamily.metric:type_name -> io.prometheus.client.Metric
+	19, // [19:19] is the sub-list for method output_type
+	19, // [19:19] is the sub-list for method input_type
+	19, // [19:19] is the sub-list for extension type_name
+	19, // [19:19] is the sub-list for extension extendee
+	0,  // [0:19] is the sub-list for field type_name
+}
+
+func init() { file_io_prometheus_client_metrics_proto_init() }
+func file_io_prometheus_client_metrics_proto_init() {
+	if File_io_prometheus_client_metrics_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_io_prometheus_client_metrics_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*LabelPair); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_io_prometheus_client_metrics_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Gauge); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_io_prometheus_client_metrics_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Counter); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_io_prometheus_client_metrics_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Quantile); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_io_prometheus_client_metrics_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Summary); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_io_prometheus_client_metrics_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Untyped); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_io_prometheus_client_metrics_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Histogram); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_io_prometheus_client_metrics_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Bucket); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_io_prometheus_client_metrics_proto_msgTypes[8].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*BucketSpan); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_io_prometheus_client_metrics_proto_msgTypes[9].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Exemplar); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_io_prometheus_client_metrics_proto_msgTypes[10].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Metric); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_io_prometheus_client_metrics_proto_msgTypes[11].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*MetricFamily); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_io_prometheus_client_metrics_proto_rawDesc,
+			NumEnums:      1,
+			NumMessages:   12,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_io_prometheus_client_metrics_proto_goTypes,
+		DependencyIndexes: file_io_prometheus_client_metrics_proto_depIdxs,
+		EnumInfos:         file_io_prometheus_client_metrics_proto_enumTypes,
+		MessageInfos:      file_io_prometheus_client_metrics_proto_msgTypes,
+	}.Build()
+	File_io_prometheus_client_metrics_proto = out.File
+	file_io_prometheus_client_metrics_proto_rawDesc = nil
+	file_io_prometheus_client_metrics_proto_goTypes = nil
+	file_io_prometheus_client_metrics_proto_depIdxs = nil
+}