How to use the python-for-android.pythonforandroid.recipe.RecipeMeta function in python-for-android

def import_recipe(module, filename):
            return SourceFileLoader(module, filename).load_module()


class RecipeMeta(type):
    def __new__(cls, name, bases, dct):
        if name != 'Recipe':
            if 'url' in dct:
                dct['_url'] = dct.pop('url')
            if 'version' in dct:
                dct['_version'] = dct.pop('version')

        return super(RecipeMeta, cls).__new__(cls, name, bases, dct)


class Recipe(with_metaclass(RecipeMeta)):
    _url = None
    '''The address from which the recipe may be downloaded. This is not
    essential, it may be omitted if the source is available some other
    way, such as via the :class:`IncludedFilesBehaviour` mixin.

    If the url includes the version, you may (and probably should)
    replace this with ``{version}``, which will automatically be
    replaced by the :attr:`version` string during download.

    .. note:: Methods marked (internal) are used internally and you
              probably don't need to call them, but they are available
              if you want.
    '''

    _version = None
    '''A string giving the version of the software the recipe describes,

def import_recipe(module, filename):
            return SourceFileLoader(module, filename).load_module()


class RecipeMeta(type):
    def __new__(cls, name, bases, dct):
        if name != 'Recipe':
            if 'url' in dct:
                dct['_url'] = dct.pop('url')
            if 'version' in dct:
                dct['_version'] = dct.pop('version')

        return super(RecipeMeta, cls).__new__(cls, name, bases, dct)


class Recipe(with_metaclass(RecipeMeta)):
    _url = None
    '''The address from which the recipe may be downloaded. This is not
    essential, it may be omitted if the source is available some other
    way, such as via the :class:`IncludedFilesBehaviour` mixin.

    If the url includes the version, you may (and probably should)
    replace this with ``{version}``, which will automatically be
    replaced by the :attr:`version` string during download.

    .. note:: Methods marked (internal) are used internally and you
              probably don't need to call them, but they are available
              if you want.
    '''

    _version = None
    '''A string giving the version of the software the recipe describes,

def __new__(cls, name, bases, dct):
        if name != 'Recipe':
            if 'url' in dct:
                dct['_url'] = dct.pop('url')
            if 'version' in dct:
                dct['_version'] = dct.pop('version')

        return super(RecipeMeta, cls).__new__(cls, name, bases, dct)

def __new__(cls, name, bases, dct):
        if name != 'Recipe':
            if 'url' in dct:
                dct['_url'] = dct.pop('url')
            if 'version' in dct:
                dct['_version'] = dct.pop('version')

        return super(RecipeMeta, cls).__new__(cls, name, bases, dct)