func (c *raftClient) ProcessRaftMessage(ctx context.Context, in *ProcessRaftMessageRequest, opts ...grpc.CallOption) (*ProcessRaftMessageResponse, error) {
    out := new(ProcessRaftMessageResponse)
    err := c.cc.Invoke(ctx, "/docker.swarmkit.v1.Raft/ProcessRaftMessage", in, out, opts...)
    if err != nil {
        return nil, err