labels: [question]
body:
  - type: markdown
    attributes:
      value: |
        Thanks for your interest in FastAPI! 🚀

        Please follow these instructions, fill every question, and do every step. 🙏

        I'm asking this because answering questions and solving problems in GitHub is what consumes most of the time.

OkHttp 3.x. You can use an OkHttp 4.x .jar file with applications or libraries built for OkHttp 3.x.

OkHttp is **not** source-compatible for Kotlin callers, but upgrading should be automatic thanks to
Kotlin’s powerful deprecation features. Most developers should be able to use IntelliJ’s _Code
Cleanup_ for a safe and fast upgrade.


Backwards-Incompatible Changes
------------------------------

    rather than via TensorFlow.

## Thanks to our Contributors

This release contains contributions from many people at Google, as well as:

Abid K, @afshinrahimi, @AidanGG, Ajay Rao, Aki Sukegawa, Alex Rothberg,
Alexander Rosenberg Johansen, Andrew Gibiansky, Andrew Thomas, @Appleholic,
Bastiaan Quast, Ben Dilday, Bofu Chen, Brandon Amos, Bryon Gloden, Cissp®,

# Body - Nested Models { #body-nested-models }

With **FastAPI**, you can define, validate, document, and use arbitrarily deeply nested models (thanks to Pydantic).

## List fields { #list-fields }

You can define an attribute to be a subtype. For example, a Python `list`:

{* ../../docs_src/body_nested_models/tutorial001_py310.py hl[12] *}

This will make `tags` be a list, although it doesn't declare the type of the elements of the list.

 * nullness annotations in particular will outweigh the costs. (And it's worth noting that we have
 * released multiple ListenableFuture.class files that are not byte-for-byte compatible even from
 * the beginning, thanks to using different `-source -target` values for compiling our `-jre` and
 * `-android` "flavors.")
 *
 * (We could consider releasing a listenablefuture:1.0.1 someday. But we would want to look into how

Even though the host of the malicious website and the local app is different, the browser won't trigger a CORS preflight request because:

* It's running without any authentication, it doesn't have to send any credentials.
* The browser thinks it's not sending JSON (because of the missing `Content-Type` header).

Then the malicious website could make the local AI agent send angry messages to the user's ex-boss... or worse. 😅

## Open Internet { #open-internet }

##### Figure 1 - Secure Channel construction

```
plaintext   := chunk_0          ||       chunk_1          ||       chunk_2          ||       ...

  public val body: ByteString?,
  /** The total size of the body of this request (before truncation).*/
  public val bodySize: Long,
  /**
   * The sizes of the chunks of this request's body, or null if the request's body was not encoded
   * with chunked encoding.
   */
  public val chunkSizes: List<Int>?,
  /**

		} else if _, enc := crypto.IsEncrypted(test.info.UserDefined); encrypted && enc != encrypted {
			t.Errorf("Test %d: Decryption thinks object is encrypted but it is not", i)
		} else if !encrypted && enc != encrypted {
			t.Errorf("Test %d: Decryption thinks object is not encrypted but it is", i)
		}
	}
}

var decryptETagTests = []struct {
	ObjectKey  crypto.ObjectKey
	ObjectInfo ObjectInfo

                new_size = len + used;
            }
            tmp = pipe_buf;
            pipe_buf = new byte[new_size];
            i = tmp.length - beg_idx;
            if (used > i) { /* 2 chunks */
                System.arraycopy(tmp, beg_idx, pipe_buf, 0, i);
                System.arraycopy(tmp, 0, pipe_buf, i, used - i);
            } else {
                System.arraycopy(tmp, beg_idx, pipe_buf, 0, used);