They're also concrete: each URL identifies a specific path (like `/square/okhttp`) and query (like `?q=sharks&lang=en`). Each webserver hosts many URLs.

### [Addresses](https://square.github.io/okhttp/4.x/okhttp/okhttp3/-address/)

  TF_Function* grad_func;
  DefineFunction("MyGrad", &grad_func);

  // Add func and its gradient to host graph
  TF_GraphCopyFunction(host_graph_, func_, grad_func, s_);
  ASSERT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);

  // Verify that function and its grad are in host graph's GraphDef
  GraphDef gdef;
  GetGraphDef(host_graph_, &gdef);
  std::vector<string> func_names = GetFuncNames(gdef);

    calls++

    if (exchange != null) {
      check(exchange.finder.routePlanner.sameHostAndPort(request.url)) {
        "network interceptor ${interceptors[index - 1]} must retain the same host and port"
      }
      check(calls == 1) {
        "network interceptor ${interceptors[index - 1]} must call proceed() exactly once"
      }
    }

    // Call the next interceptor in the chain.

import okio.Buffer
import okio.BufferedSink
import okio.BufferedSource
import okio.ByteString
import okio.buffer
import okio.sink
import okio.source

/**
 * A socket connection to a remote peer. A connection hosts streams which can send and receive
 * data.
 *
 * Many methods in this API are **synchronous:** the call is completed before the method returns.

information on the Istio community, including the various documents that govern
the Istio open source project.

- [istio/istio](README.md). This is the main code repository. It hosts Istio's
core components, install artifacts, and sample programs. It includes:

    - [istioctl](istioctl/). This directory contains code for the

      },
      "favorite_count": {
        "type": "long"
      },
      "filename": {
        "type": "keyword"
      },
      "filetype": {
        "type": "keyword"
      },
      "host": {
        "type": "keyword"
      },
      "lang": {
        "type": "keyword"
      },
      "last_modified": {
        "type": "date",
        "format": "date_optional_time"
      },

    val username: String = httpUrl.username()
    val encodedPassword: String = httpUrl.encodedPassword()
    val password: String = httpUrl.password()
    val host: String = httpUrl.host()
    val port: Int = httpUrl.port()
    val pathSize: Int = httpUrl.pathSize()
    val encodedPath: String = httpUrl.encodedPath()
    val encodedPathSegments: List<String> = httpUrl.encodedPathSegments()

		return ErrMalformedExpires
	}

	// Check if the presigned URL has expired.
	if expiresInt < UTCNow().Unix() {
		return ErrExpiredPresignRequest
	}

	encodedResource, err = getResource(encodedResource, r.Host, globalDomainNames)
	if err != nil {
		return ErrInvalidRequest
	}

	expectedSignature := preSignatureV2(cred, r.Method, encodedResource, strings.Join(filteredQueries, "&"), r.Header, expires)

			Value: cfg.ConnectionString,
		},
		config.KV{
			Key:   target.PostgresTable,
			Value: cfg.Table,
		},
		config.KV{
			Key:   target.PostgresHost,
			Value: cfg.Host.String(),
		},
		config.KV{
			Key:   target.PostgresPort,
			Value: cfg.Port,
		},
		config.KV{
			Key:   target.PostgresUsername,
			Value: cfg.Username,
		},
		config.KV{

        return artifactResolver.resolve(request);
    }

    //    public void addProxy( String protocol, String host, int port, String username, String password,
    //                          String nonProxyHosts )
    //    {
    //        ProxyInfo proxyInfo = new ProxyInfo();
    //        proxyInfo.setHost( host );
    //        proxyInfo.setType( protocol );
    //        proxyInfo.setPort( port );