def get_code(self, id_code, access_token=None, user_id=None):
        """
        Get a code, by its id
        """
        if access_token:
            self.req.credential.set_token(access_token)
        if user_id:
            self.req.credential.set_user_id(user_id)
        if not self.check_credentials():
            raise CredentialsError('credentials invalid')
        code = self.req.get('/Codes/' + id_code)
        executions = self.req.get('/Codes/' + id_code + '/executions',
                                  '&filter={"limit":3}')
        if isinstance(executions, list):
            code["executions"] = executions
        return code
Get a code, by its id