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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 authenticate_identify(self, api_token, override=True):
 """Set credentials for Identify authentication. Args: api_token (str):
 Token issued to your Application through the Gem Developer Console. override (boolean):
 Replace existing Application credentials. """

        if (self.context.has_auth_params('Gem-Identify') and not override):
            raise OverrideError('Gem-Identify')

        if (not api_token or
            not self.context.authorize('Gem-Identify', api_token=api_token)):
            raise AuthUsageError(self.context, 'Gem-Identify')

        return True