func (c *raftMembershipClient) Leave(ctx context.Context, in *LeaveRequest, opts ...grpc.CallOption) (*LeaveResponse, error) {
    out := new(LeaveResponse)
    err := c.cc.Invoke(ctx, "/docker.swarmkit.v1.RaftMembership/Leave", in, out, opts...)
    if err != nil {
        return nil, err