dist/event-target-shim.js
function getListeners(eventTarget) {
    const listeners = listenersMap.get(eventTarget);
    if (listeners == null) {
        throw new TypeError(
            "'this' is expected an EventTarget object, but got another value."
        )
    }
    return listeners
}
function getListeners(eventTarget) {
    const listeners = listenersMap.get(eventTarget);
    if (listeners == null) {
        throw new TypeError(
            "'this' is expected an EventTarget object, but got another value."
        )
    }
    return listeners
}
Get listeners.
@param {EventTarget} eventTarget The event target to get.
@returns {Map<string, ListenerNode>} The listeners.
@private