val request =
      Request
        .Builder()
        .url("https://square.com")
        .tag("a" as Any)
        .tag(null)
        .build()
    assertThat(request.tag<Any>()).isNull()
  }

  @Test
  fun removeAbsentTag() {
    val request =
      Request
        .Builder()
        .url("https://square.com")
        .tag(null)
        .build()

 [AccessHeadersJava]: https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/AccessHeaders.java
 [AccessHeadersKotlin]: https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/kt/AccessHeaders.kt

    val request =
      Request
        .Builder()
        .url("https://square.com")
        .tag("a")
        .tag(null)
        .build()
    assertThat(request.tag()).isNull()
  }

  @Test
  fun removeAbsentTag() {
    val request =
      Request
        .Builder()
        .url("https://square.com")
        .tag(null)
        .build()
    assertThat(request.tag()).isNull()
  }

 * [PersistentCookieJar](https://github.com/franmontiel/PersistentCookieJar): A persistent `CookieJar`.
 * ⬜️ [Picasso](https://github.com/square/picasso): A powerful image downloading and caching library for Android.
 * ⬜️ [Retrofit](https://github.com/square/retrofit): Type-safe HTTP client for Android and Java by Square.
 * [ScribeJava](https://github.com/scribejava/scribejava): Simple OAuth library for Java

/*
 * Copyright (C) 2025 Square, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,

          url.set("https://github.com/square/okhttp")
        }
        developers {
          developer {
            name.set("Square, Inc.")
          }
        }
      }
    }
  }

  plugins.withId("binary-compatibility-validator") {
    configure<ApiValidationExtension> {
      ignoredPackages += "okhttp3.logging.internal"
      ignoredPackages += "mockwebserver3.internal"

   *
   * <p>This fit minimizes the root-mean-square error in {@code y} as a function of {@code x}. This
   * error is defined as the square root of the mean of the squares of the differences between the
   * actual {@code y} values of the data and the values predicted by the fit for the {@code x}
   * values (i.e. it is the square root of the mean of the squares of the vertical distances between

    y: float


@app.post("/model-with-tuple/")
def post_model_with_tuple(item_group: ItemGroup):
    return item_group


@app.post("/tuple-of-models/")
def post_tuple_of_models(square: tuple[Coordinate, Coordinate]):
    return square


@app.post("/tuple-form/")
def hello(values: tuple[int, int] = Form()):
    return values


client = TestClient(app)


def test_model_with_tuple_valid():

/*
 * Copyright (C) 2020 Square, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,

also need rules from [Okio][okio] which is a dependency of this library.

 [okhttp3_pro]: https://raw.githubusercontent.com/square/okhttp/master/okhttp/okhttp3.pro