OptionalauthAuthentication configuration. (-- Mutual exclusivity is enforced by the oneof on the wire. --)
Bearer token forwarded in the Authorization header. Supply the value
in api_key.plaintext.
OptionalbaseEndpoint URL of the OpenAI-compatible service (e.g.,
https://api.example.com/v1). Required on Create.
Direct form of a custom provider configuration. Set
api_keyto the bearer token sent in theAuthorizationheader.