/**
   * Guaranteed to throw an exception and leave the multimap unmodified.
   *
   * @throws UnsupportedOperationException always
   * @deprecated Unsupported operation.
   */
  @CanIgnoreReturnValue
  @Deprecated
  @Override
  @DoNotCall("Always throws UnsupportedOperationException")
  // DoNotCall wants this to be final, but we want to override it to return more specific types.

  /**
   * Guaranteed to throw an exception and leave the multimap unmodified.
   *
   * @throws UnsupportedOperationException always
   * @deprecated Unsupported operation.
   */
  @CanIgnoreReturnValue
  @Deprecated
  @Override
  @DoNotCall("Always throws UnsupportedOperationException")
  // DoNotCall wants this to be final, but we want to override it to return more specific types.

                tasks = "clean $testTaskName"
                gradleParams = parameters
                executionMode = BuildStep.ExecutionMode.ALWAYS
            }
        }
        killProcessStep(KILL_PROCESSES_STARTED_BY_GRADLE, os, arch, executionMode = BuildStep.ExecutionMode.ALWAYS)

        steps {
            checkCleanM2AndAndroidUserHome(os)
        }

        applyDefaultDependencies(model, this)

   * @deprecated Unsupported operation.
   */
  @CanIgnoreReturnValue
  @Deprecated
  @Override
  @DoNotCall("Always throws UnsupportedOperationException")
  public final E remove(int index) {
    throw new UnsupportedOperationException();
  }

  /**
   * Guaranteed to throw an exception and leave the list unmodified.
   *
   * @throws UnsupportedOperationException always

        }

        /**
         * Gets the servlet context. This operation is not supported.
         *
         * @return Never returns, always throws UnsupportedOperationException
         * @throws UnsupportedOperationException Always thrown as this operation is not supported
         */
        @Override
        public ServletContext getServletContext() {

 * it requires that the complete universe of rows and columns be specified at construction time.
 * Second, it is always backed by an array large enough to hold a value for every possible
 * combination of row and column keys. (This is rarely optimal unless the table is extremely dense.)
 * Finally, every possible combination of row and column keys is always considered to have a value

<div class="screenshot">
<img src="/img/tutorial/separate-openapi-schemas/image02.png">
</div>

This means that it will **always have a value**, it's just that sometimes the value could be `None` (or `null` in JSON).

That means that, clients using your API don't have to check if the value exists or not, they can **assume the field will always be there**, but just that in some cases it will have the default value of `None`.

		// The growth rate has historically always been 2x. In the future,
		// we could rely purely on append to determine the growth rate.
		c = 2 * cap(b)
	}
	b2 := append([]byte(nil), make([]byte, c)...)
	i := copy(b2, b)
	return b2[:i]
}

// WriteTo writes data to w until the buffer is drained or an error occurs.
// The return value n is the number of bytes written; it always fits into an

fun BuildSteps.substDirOnWindows(os: Os) {
    if (os == Os.WINDOWS) {
        script {
            name = "SETUP_VIRTUAL_DISK_FOR_PERF_TEST"
            executionMode = BuildStep.ExecutionMode.ALWAYS
            scriptContent =
                """
                subst p: /d
                subst p: "%teamcity.build.checkoutDir%"
                """.trimIndent()
            skipConditionally()
        }
    }

    buildType.steps {
        extraSteps()
        killProcessStep(buildType, KILL_PROCESSES_STARTED_BY_GRADLE, os, arch, executionMode = ExecutionMode.ALWAYS)
        checkCleanM2AndAndroidUserHome(os, buildType)
    }
    buildType.addEc2PostBuild(os)

    applyDefaultDependencies(model, buildType)
}

private fun BaseGradleBuildType.addRetrySteps(