def getEventListener(element):
    JS("""
    return @{{element}}['__listener'];
    """)
Implementation of CapabilityService::IsEnabled().
dataset/ETHPy150Open pyjs/pyjs/pyjswidgets/pyjamas/DOM.browser.py/getEventListener--crossover with--dataset/ETHPy150Open CollabQ/CollabQ/.google_appengine/google/appengine/api/capabilities/capability_stub.py/CapabilityServiceStub._Dynamic_IsEnabled