text: // Copyright 2018 The Go Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style
  // license that can be found in the LICENSE file.
  
  // Package google provides support for making OAuth2 authorized and authenticated
  // HTTP requests to Google APIs. It supports the Web server flow, client-side
  // credentials, service accounts, Google Compute Engine service accounts, and Google
  // App Engine service accounts.
  //
  // A brief overview of the package follows. For more information, please read
  // https://developers.google.com/accounts/docs/OAuth2
  // and
  // https://developers.google.com/accounts/docs/application-default-credentials.
  //
  // OAuth2 Configs
  //
  // Two functions in this package return golang.org/x/oauth2.Config values from Google credential
  // data. Google supports two JSON formats for OAuth2 credentials: one is handled by ConfigFromJSON,
  // the other by JWTConfigFromJSON. The returned Config can be used to obtain a TokenSource or
  // create an http.Client.
  //
  //
  // Credentials
  //
  // The Credentials type represents Google credentials, including Application Default
  // Credentials.
  //
  // Use FindDefaultCredentials to obtain Application Default Credentials.
  // FindDefaultCredentials looks in some well-known places for a credentials file, and
  // will call AppEngineTokenSource or ComputeTokenSource as needed.
  //
  // DefaultClient and DefaultTokenSource are convenience methods. They first call FindDefaultCredentials,
  // then use the credentials to construct an http.Client or an oauth2.TokenSource.
  //
  // Use CredentialsFromJSON to obtain credentials from either of the two JSON formats
  // described in OAuth2 Configs, above. The TokenSource in the returned value is the
  // same as the one obtained from the oauth2.Config returned from ConfigFromJSON or
  // JWTConfigFromJSON, but the Credentials may contain additional information
  // that is useful is some circumstances.
  package google // import "golang.org/x/oauth2/google"
  