úÎ © ô     NoneOAuth2 client definition @https://developers.google.com/console/help/new/#generatingoauth2 .Get a valid access token with the given scopes·If given, credentials are cached in a file, thus preventing the need for any prompting on subsequent reuse. N.B. this function always refreshes the access token before returning it.BPrompt the user for a verification code and exchange it for tokens'Prompt the user for a verification code'Exchange a verification code for tokens/Use the refresh token to get a new access token!   File in which to cache the tokenRefreshed token       !      google-oauth2-0.1.0Network.Google.OAuth2 OAuth2Tokens accessToken refreshToken expiresIn tokenType OAuth2ClientclientId clientSecret OAuth2Token OAuth2Scope OAuth2CodegetAccessToken newTokens promptForCode exchangeCode refreshTokensRefreshResponse rAccessToken rExpiresIn rTokenTypetoOAuth2Tokens postTokens cachedTokens cacheTokens permissionUrl redirectUri unsafeDecodetry$fFromJSONRefreshResponse$fFromJSONOAuth2Tokens