Type-safe event handler pattern. This pattern reduces the likelihood of an unhandled ``InvalidCastException`` since the ``sender`` argument of event handlers doesn't need to be casted. It also discourages the usage of closures to retrieve the sender with its original type.

TypeEventHandler.cs

/// <typeparam name="TSender">The type of the source of the event.</typeparam>
/// <typeparam name="TEventArgs">The type of event data generated by the event.</typeparam>
/// <remarks>Type-safe variation from <see cref="EventHandler{TEventArgs}"/>.</remarks>
/// <inheritdoc cref="EventHandler{TEventArgs}"/>
[Serializable]
[SuppressMessage("Naming", "CA1711", Justification = "Type-safe event handler pattern")]
public delegate void TypeEventHandler<TSender, TEventArgs>(TSender sender, TEventArgs e);

/// <typeparam name="TSender">The type of the source of the event.</typeparam>
/// <remarks>Type-safe variation from <see cref="EventHandler"/>.</remarks>
/// <inheritdoc cref="EventHandler"/>
[Serializable]
[SuppressMessage("Naming", "CA1711", Justification = "Type-safe event handler pattern")]
public delegate void TypeEventHandler<TSender>(TSender sender, EventArgs e);