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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 _get_resource_list(self, rsrc_dict):
 """Extracts list of resources from the HTTP response. Args: rsrc_dict (dict):
 HTTP response encoded in a dictionary. Returns: (list[string]):
 List of a type of resource (collections, experiments, etc). Raises: (RuntimeError):
 If rsrc_dict does not contain any known resources. """

        if 'collections' in rsrc_dict:
            return rsrc_dict['collections']
        if 'experiments' in rsrc_dict:
            return rsrc_dict['experiments']
        if 'channels' in rsrc_dict:
            return rsrc_dict['channels']
        if 'coords' in rsrc_dict:
            return rsrc_dict['coords']

        raise RuntimeError('Invalid list response received from Boss.  No known resource type returned.')