def is_python_proxy(parameter):
    """Determines whether parameter is a Python Proxy, i.e., it has a Java
    internal class with an `implements` member.

    :param parameter: the object to check.
    :rtype: True if the parameter is a Python Proxy
    """
    try:
        is_proxy = len(parameter.Java.implements) > 0
    except Exception:
        is_proxy = False
    return is_proxy
