ClientAuthMethod ="client_secret_basic"|"client_secret_post"|"client_secret_jwt"|"private_key_jwt"
Supported OAuth 2.0 client authentication methods.
These methods define how a client authenticates itself when calling the authorization server token endpoint.
client_secret_basic - Client credentials are sent using HTTP Basic authenticationclient_secret_post - Client credentials are included in the request body as form parameters.client_secret_jwt - Client authenticates using a signed JWT created with the client secret.private_key_jwt - Client authenticates using a signed JWT created with a private key.