docFile.readLines().joinToString(separator = "\n", postfix = "\n") { line ->
                if (line.startsWith(linePrefix)) {
                    lineFound = true
                    "$linePrefix ${firstVersion}${if(firstVersion == latestVersion) "" else " through $latestVersion"}."
                } else {
                    line
                }
            }
        )
        require(lineFound) {

* This means that it will work well for large files like images, videos, large binaries, etc. without consuming all the memory.
* You can get metadata from the uploaded file.
* It has a <a href="https://docs.python.org/3/glossary.html#term-file-like-object" class="external-link" target="_blank">file-like</a> `async` interface.

    * If you didn't use FastAPI and used Starlette directly (or another tool, like Sanic, Flask, Responder, etc) you would have to implement all the data validation and serialization yourself....

/**
 * Appends value to the given Appendable and simple `\n` line separator after it.
 *
 * Always using the same line separator on all systems to allow for reproducible outputs.
 */
fun Appendable.appendReproducibleNewLine(value: CharSequence = ""): Appendable {
    assert('\r' !in value) {
        "Unexpected line ending in string."
    }
    return append(value).append("\n")

      )
    val response = call.execute()
    try {
      println(response.code)
      println("PROTOCOL ${response.protocol}")
      var line: String?
      while (response.body
          .source()
          .readUtf8Line()
          .also { line = it } != null
      ) {
        println(line)
      }
    } finally {
      response.body.close()
    }
    client.connectionPool.evictAll()
  }

Notice that `response_model` is a parameter of the "decorator" method (`get`, `post`, etc). Not of your *path operation function*, like all the parameters and body.

///

`response_model` receives the same type you would declare for a Pydantic model field, so, it can be a Pydantic model, but it can also be, e.g. a `list` of Pydantic models, like `List[Item]`.

#### Using `StreamingResponse` with file-like objects { #using-streamingresponse-with-file-like-objects }

If you have a <a href="https://docs.python.org/3/glossary.html#term-file-like-object" class="external-link" target="_blank">file-like</a> object (e.g. the object returned by `open()`), you can create a generator function to iterate over that file-like object.

                                .addBuildSummary(new BuildSuccess(step.project, clock.wallTime(), clock.execTime()));
                        eventCatapult.fire(ExecutionEvent.Type.ProjectSucceeded, session, null);
                    } else {
                        eventCatapult.fire(ExecutionEvent.Type.ProjectSkipped, session, null);
                    }
                    break;
                default:

internal fun cookieToString(
  cookie: Cookie,
  forObsoleteRfc2965: Boolean,
): String = cookie.toString(forObsoleteRfc2965)

internal fun addHeaderLenient(
  builder: Headers.Builder,
  line: String,
): Headers.Builder = builder.addLenient(line)

internal fun addHeaderLenient(
  builder: Headers.Builder,
  name: String,
  value: String,
): Headers.Builder = builder.addLenient(name, value)

internal fun cacheGet(

     * @param listener The listener to notify, must not be {@code null}.
     * @param event The event to fire, must not be {@code null}.
     */
    void fire(ModelBuildingListener listener, ModelBuildingEvent event);

    ModelBuildingEventCatapult BUILD_EXTENSIONS_ASSEMBLED = new ModelBuildingEventCatapult() {
        @Override
        public void fire(ModelBuildingListener listener, ModelBuildingEvent event) {