Interface Salient\Http\OAuth2\OAuth2GrantType

OAuth 2.0 grant types

Located at Toolkit/Http/OAuth2/OAuth2GrantType.php

Constants
`public`	`AUTHORIZATION_CODE = 'authorization_code'`	#
`public`	`REFRESH_TOKEN = 'refresh_token'`	#
`public`	`CLIENT_CREDENTIALS = 'client_credentials'`	#