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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 fetch_identifier_component(self, endpoint_name, identifier_data, query_params=None):
 """Common method for handling parameters before passing to api_client"""


        if query_params is None:
            query_params = {}

        identifier_input = self.get_identifier_input(identifier_data)

        return self._api_client.fetch(endpoint_name, identifier_input, query_params)