{% stripspace %}
ErrorResponse generates error response for /api/v1/query.
See https://prometheus.io/docs/prometheus/latest/querying/api/#format-overview
{% func ErrorResponse(statusCode int, err error) %}
{
	"status":"error",
	"errorType":"{%d statusCode %}",
	"error": {%q= err.Error() %}
}
{% endfunc %}
{% endstripspace %}