// TODO: response headers?
		_, f := r.RequestHeaders[http.CanonicalHeaderKey("X-Request-Id")]
		if !f {
			return fmt.Errorf("X-Request-Id not set, is L7 processing enabled?")
		}
		return nil
	})
}

func IsL4() echo.Checker {
	return check.Each(func(r echot.Response) error {
		// TODO: response headers?
		_, f := r.RequestHeaders[http.CanonicalHeaderKey("X-Request-Id")]
		if f {

      --external-hostname="${EXTERNAL_HOSTNAME}" \
      --requestheader-username-headers=X-Remote-User \
      --requestheader-group-headers=X-Remote-Group \
      --requestheader-extra-headers-prefix=X-Remote-Extra- \
      --requestheader-client-ca-file="${CERT_DIR}/request-header-ca.crt" \
      --requestheader-allowed-names=system:auth-proxy \
      --proxy-client-cert-file="${CERT_DIR}/client-auth-proxy.crt" \

        wait()
      }
      return events.removeAt(0)
    }

    @Synchronized override fun onRequest(
      streamId: Int,
      requestHeaders: List<Header>,
    ): Boolean {
      assertThat(streamId).isEqualTo(2)
      events.add(requestHeaders)
      notifyAll()
      return false
    }

    @Synchronized override fun onHeaders(
      streamId: Int,

    //                                                                       =============
    @Override
    public String asTableDbName() {
        return "request_header";
    }

    @Override
    public String xgetAliasName() {
        return "request_header";
    }

    // ===================================================================================

			TokenRequestTimeout: 10 * time.Second,
			WebhookRetryBackoff: apiserveroptions.DefaultAuthWebhookRetryBackoff(),
			ClientCert:          apiserveroptions.ClientCertAuthenticationOptions{},
			RequestHeader: apiserveroptions.RequestHeaderAuthenticationOptions{
				UsernameHeaders:     []string{"x-remote-user"},
				GroupHeaders:        []string{"x-remote-group"},
				ExtraHeaderPrefixes: []string{"x-remote-extra-"},
			},

								Value: "literal-value",
							},
						},
					},
					{
						Tag: "custom_tag_request_header",
						Type: &tracing.CustomTag_RequestHeader{
							RequestHeader: &tracing.CustomTag_Header{
								Name:         "custom_tag_request_header_name",
								DefaultValue: "custom-defaulted-value-request-header",
							},
						},
					},
				}, customTracingTags()...),