ConstReadonlyAUTH_METHOD_UNSPECIFIED: "AUTH_METHOD_UNSPECIFIED"ReadonlyLAKEBASE_OAUTH_V1: "LAKEBASE_OAUTH_V1"LAKEBASE_OAUTH_V1 is for logging in with the managed identities like
the
ReadonlyNO_LOGIN: "NO_LOGIN"NO_LOGIN means this role cannot be used for interactive access
ReadonlyPG_PASSWORD_SCRAM_SHA_256: "PG_PASSWORD_SCRAM_SHA_256"PG_PASSWORD_SCRAM_SHA_256 is a password-based authentication
How the role is authenticated when connecting to Postgres.