Type Definition grpcio_sys::grpc_tls_on_credential_reload_done_cb

type grpc_tls_on_credential_reload_done_cb = Option<unsafe extern "C" fn(arg: *mut grpc_tls_credential_reload_arg)>;

A callback function provided by gRPC to handle the result of credential reload. It is used when schedule API is implemented asynchronously and serves to bring the control back to grpc C core. It is used for experimental purpose for now and subject to change.