@type t() :: %ExTermbox.Event{
  ch: integer() | nil,
  h: integer() | nil,
  key: atom() | integer() | nil,
  mod: atom() | integer() | nil,
  type: atom(),
  w: integer() | nil,
  x: integer() | nil,
  y: integer() | nil
}

The event structure.

Fields:

• :type - The type of event (e.g., :key, :resize, :mouse). Atom.
• :mod - Modifier keys pressed (e.g., :alt). Atom or nil.
• :key - The key pressed (e.g., :f1, :arrow_up, :ctrl_a). Atom or nil.
• :ch - The character pressed (if applicable, Unicode codepoint). Integer or nil.
• :w - New width (for resize events). Integer or nil.
• :h - New height (for resize events). Integer or nil.
• :x - Mouse x position (for mouse events). Integer or nil.
• :y - Mouse y position (for mouse events). Integer or nil.