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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def list_experiments(self, collection_name):
 """ List all experiments that belong to a collection. Args: collection_name (string):
 Name of the parent collection. Returns: (list) Raises: requests.HTTPError on failure. """

        exp = ExperimentResource(
            name='', collection_name=collection_name, coord_frame='foo')
        return self._list_resource(exp)