<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
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<USER_TASK:>
Description:
 def instruments( self, accountID, **kwargs ):
 """ Get the list of tradeable instruments for the given Account. The list of tradeable instruments is dependent on the regulatory division that the Account is located in, thus should be the same for all Accounts owned by a single user. Args: accountID: Account Identifier instruments: List of instruments to query specifically. Returns: v20.response.Response containing the results from submitting the request """


        request = Request(
            'GET',
            '/v3/accounts/{accountID}/instruments'
        )

        request.set_path_param(
            'accountID',
            accountID
        )

        request.set_param(
            'instruments',
            kwargs.get('instruments')
        )

        response = self.ctx.request(request)


        if response.content_type is None:
            return response

        if not response.content_type.startswith("application/json"):
            return response

        jbody = json.loads(response.raw_body)

        parsed_body = {}

        #
        # Parse responses as defined by the API specification
        #
        if str(response.status) == "200":
            if jbody.get('instruments') is not None:
                parsed_body['instruments'] = [
                    self.ctx.primitives.Instrument.from_dict(d, self.ctx)
                    for d in jbody.get('instruments')
                ]

            if jbody.get('lastTransactionID') is not None:
                parsed_body['lastTransactionID'] = \
                    jbody.get('lastTransactionID')

        elif str(response.status) == "400":
            if jbody.get('errorCode') is not None:
                parsed_body['errorCode'] = \
                    jbody.get('errorCode')

            if jbody.get('errorMessage') is not None:
                parsed_body['errorMessage'] = \
                    jbody.get('errorMessage')

        elif str(response.status) == "401":
            if jbody.get('errorCode') is not None:
                parsed_body['errorCode'] = \
                    jbody.get('errorCode')

            if jbody.get('errorMessage') is not None:
                parsed_body['errorMessage'] = \
                    jbody.get('errorMessage')

        elif str(response.status) == "405":
            if jbody.get('errorCode') is not None:
                parsed_body['errorCode'] = \
                    jbody.get('errorCode')

            if jbody.get('errorMessage') is not None:
                parsed_body['errorMessage'] = \
                    jbody.get('errorMessage')

        #
        # Unexpected response status
        #
        else:
            parsed_body = jbody

        response.body = parsed_body

        return response