global enum InvocationContext { ASSET_TOKEN, OAUTH1, OAUTH2_JWT_BEARER_TOKEN, OAUTH2_SAML_ASSERTION, OAUTH2_SAML_BEARER_ASSERTION, OAUTH2_USERNAME_PASSWORD, OAUTH2_USER_AGENT_ID_TOKEN, OAUTH2_USER_AGENT_TOKEN, OAUTH2_WEB_SERVER, OAUTH2_WEB_SERVER_ID_TOKEN, OPENIDCONNECT, REFRESH_TOKEN, SAML_ASSERTION, UNKNOWN, USERID_ENDPOINT }