def is_abstract(cls):
    'Check if the class is an abstract test.\n\n        This is the case when some parameters are undefined, which results in\n        the length of the parameter space being 0.\n\n        :return: bool indicating whether the test has undefined parameters.\n\n        :meta private:\n        '
    return (len(cls.param_space) == 0)
Check if the class is an abstract test.

This is the case when some parameters are undefined, which results in
the length of the parameter space being 0.

:return: bool indicating whether the test has undefined parameters.

:meta private:
def is_abstract(cls):
    'Check if the class is an abstract test.\n\n        This is the case when some parameters are undefined, which results in\n        the length of the parameter space being 0.\n\n        :return: bool indicating whether the test has undefined parameters.\n\n        :meta private:\n        '
    return (len(cls.param_space) == 0)