AsyncBinding<T>(String $interfaceName)
Creates a binding object in an unbound state.
Rather than creating a AsyncBinding<T> object directly, you typically create
a TBinding
object, which are subclasses of AsyncBinding<T> created by the
FIDL compiler for a specific interface.
Implementation
AsyncBinding(this.$interfaceName) {
_reader
..onReadable = _handleReadable
..onError = _handleError;
}