def _get_plugin_methods(plugin_klass):
    """
    Return a list of names of all the methods in the provided class.

    Note: Abstract methods which are not implemented are excluded from the
    list.

    :rtype: ``list`` of ``str``
    """
    if six.PY3:
        methods = inspect.getmembers(plugin_klass, inspect.isfunction)
    else:
        methods = inspect.getmembers(plugin_klass, inspect.ismethod)

    # Exclude inherited abstract methods from the parent class
    method_names = []
    for name, method in methods:
        method_properties = method.__dict__
        is_abstract = method_properties.get("__isabstractmethod__", False)

        if is_abstract:
            continue

        method_names.append(name)
    return method_names

    Return a list of names of all the methods in the provided class.

    Note: Abstract methods which are not implemented are excluded from the
    list.

    :rtype: ``list`` of ``str``
    
st2common/st2common/util/loader.py