Class that implements IDisposable without Dispose function?

Question

I just pulled in WebSocketSharp via nuget.
It's class WebSocket implements IDisposable but doesn't seem to have a Dispose method.
How is that possible? I thought if you implement an interface you also have to implement all of it's properties/methods.

Answer 1

On GitHub in source:

#region Explicit Interface Implementations

/// <summary>
/// Closes the WebSocket connection, and releases all associated resources.
/// </summary>
/// <remarks>
/// This method closes the connection with <see cref="CloseStatusCode.Away"/>.
/// </remarks>
void IDisposable.Dispose ()
{
  close (new CloseEventArgs (CloseStatusCode.Away), true, true, false);
}

#endregion