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+// Copyright The OpenTelemetry Authors
+//
+// 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.
+
+// Package metric provides an implementation of the OpenTelemetry metrics SDK.
+//
+// See https://opentelemetry.io/docs/concepts/signals/metrics/ for information
+// about the concept of OpenTelemetry metrics and
+// https://opentelemetry.io/docs/concepts/components/ for more information
+// about OpenTelemetry SDKs.
+//
+// The entry point for the metric package is the MeterProvider. It is the
+// object that all API calls use to create Meters, instruments, and ultimately
+// make metric measurements. Also, it is an object that should be used to
+// control the life-cycle (start, flush, and shutdown) of the SDK.
+//
+// A MeterProvider needs to be configured to export the measured data, this is
+// done by configuring it with a Reader implementation (using the WithReader
+// MeterProviderOption). Readers take two forms: ones that push to an endpoint
+// (NewPeriodicReader), and ones that an endpoint pulls from. See
+// [go.opentelemetry.io/otel/exporters] for exporters that can be used as
+// or with these Readers.
+//
+// Each Reader, when registered with the MeterProvider, can be augmented with a
+// View. Views allow users that run OpenTelemetry instrumented code to modify
+// the generated data of that instrumentation.
+//
+// The data generated by a MeterProvider needs to include information about its
+// origin. A MeterProvider needs to be configured with a Resource, using the
+// WithResource MeterProviderOption, to include this information. This Resource
+// should be used to describe the unique runtime environment instrumented code
+// is being run on. That way when multiple instances of the code are collected
+// at a single endpoint their origin is decipherable.
+//
+// See [go.opentelemetry.io/otel/metric] for more information about
+// the metric API.
+package metric // import "go.opentelemetry.io/otel/sdk/metric"