/// <summary>
/// Pins an item to a channel.
/// </summary>
public Task <SlackBaseResponse> PinAsync(PinItem pinItem)
=> SendPostFormUrlEncodedAsync("add", pinItem);
/// <inheritdoc cref="PinsClient.PinAsync(PinItem)"/> public Task <SlackBaseResponse> PinMessageAsync(PinItem pinItem) => Pins.PinAsync(pinItem);