const github.com/refraction-networking/utls/dicttls.QUICTransportErrorCode_FLOW_CONTROL_ERROR

one use

	github.com/refraction-networking/utls/dicttls (current package)
		quic_transport_error_codes.go#L10: 	QUICTransportErrorCode_FLOW_CONTROL_ERROR        uint16 = 0x0003