Method to get department by name.

def get_depts(self, dept_name=None):
        """Method to get department by name."""
        depts = self.json_response.get("department", None)
        params = self.kwargs.get("params", None)
        fetch_child = params.get("fetch_child", True) if params else True
        if dept_name is not None:
            depts = [dept for dept in depts if dept["name"] == dept_name]
        depts = [{"id": dept["id"], "name": dept["name"]} for dept in depts]
        self.logger.info("%s\t%s" % (self.request_method, self.request_url))
        return depts if fetch_child else depts[0]