} else if (platformSystemProperty == JDK8_ALPN_PROPERTY) {
          if (!isAlpnBootEnabled()) {
            System.err.println("Warning: ALPN Boot not enabled")
          }
        } else if (platformSystemProperty == JDK8_PROPERTY) {
          if (isAlpnBootEnabled()) {
            System.err.println("Warning: ALPN Boot enabled unintentionally")
          }

## Import `Field` { #import-field }

First, you have to import it:

{* ../../docs_src/body_fields/tutorial001_an_py310.py hl[4] *}


/// warning

Notice that `Field` is imported directly from `pydantic`, not from `fastapi` as are all the rest (`Query`, `Path`, `Body`, etc).

///

## Declare model attributes { #declare-model-attributes }

 * methods to modify the behavior of the backing set as desired per the <a
 * href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>.
 *
 * <p><b>Warning:</b> The methods of {@code ForwardingSet} forward <b>indiscriminately</b> to the
 * methods of the delegate. For example, overriding {@link #add} alone <b>will not</b> change the

			b.Fatal(err)
		}
	}
}

func TestEncodeDecodeAccElem(t *testing.T) {
	v := AccElem{}
	var buf bytes.Buffer
	msgp.Encode(&buf, &v)

	m := v.Msgsize()
	if buf.Len() > m {
		t.Log("WARNING: TestEncodeDecodeAccElem Msgsize() is inaccurate")
	}

	vn := AccElem{}
	err := msgp.Decode(&buf, &vn)
	if err != nil {
		t.Error(err)
	}

	buf.Reset()
	msgp.Encode(&buf, &v)

			b.Fatal(err)
		}
	}
}

func TestEncodeDecodeBatchJobExpire(t *testing.T) {
	v := BatchJobExpire{}
	var buf bytes.Buffer
	msgp.Encode(&buf, &v)

	m := v.Msgsize()
	if buf.Len() > m {
		t.Log("WARNING: TestEncodeDecodeBatchJobExpire Msgsize() is inaccurate")
	}

	vn := BatchJobExpire{}
	err := msgp.Decode(&buf, &vn)
	if err != nil {
		t.Error(err)
	}

	buf.Reset()
	msgp.Encode(&buf, &v)

        callerInfo = new NullPointerException().getStackTrace()[2];

        Runnable warning = this::maybeWarnAboutCleanUp;

        cleanupWarning = new Thread(warning);

        Runtime.getRuntime().addShutdownHook(cleanupWarning);
    }

    private void maybeWarnAboutCleanUp() {
        if (warnAboutCleanup) {
            System.out.println("[WARNING] TestFileManager from: " + callerInfo.getClassName() + " not cleaned up!");
        }

			b.Fatal(err)
		}
	}
}

func TestEncodeDecodeallTierStats(t *testing.T) {
	v := allTierStats{}
	var buf bytes.Buffer
	msgp.Encode(&buf, &v)

	m := v.Msgsize()
	if buf.Len() > m {
		t.Log("WARNING: TestEncodeDecodeallTierStats Msgsize() is inaccurate")
	}

	vn := allTierStats{}
	err := msgp.Decode(&buf, &vn)
	if err != nil {
		t.Error(err)
	}

	buf.Reset()
	msgp.Encode(&buf, &v)

      replaceWith =
        ReplaceWith(
          expression = "content.toRequestBody(contentType)",
          imports = ["okhttp3.RequestBody.Companion.toRequestBody"],
        ),
      level = DeprecationLevel.WARNING,
    )
    fun create(
      contentType: MediaType?,
      content: String,
    ): RequestBody = content.toRequestBody(contentType)

    @JvmStatic
    @Deprecated(

	}
}

func TestEncodeDecodeBatchJobReplicateCredentials(t *testing.T) {
	v := BatchJobReplicateCredentials{}
	var buf bytes.Buffer
	msgp.Encode(&buf, &v)

	m := v.Msgsize()
	if buf.Len() > m {
		t.Log("WARNING: TestEncodeDecodeBatchJobReplicateCredentials Msgsize() is inaccurate")
	}

	vn := BatchJobReplicateCredentials{}
	err := msgp.Decode(&buf, &vn)
	if err != nil {
		t.Error(err)
	}

	buf.Reset()

    replaceWith =
      ReplaceWith(
        expression = "callFactory.asEventSourceFactory()",
        imports = ["okhttp3.sse.EventSource.Factory.Companion.asEventSourceFactory"],
      ),
    level = DeprecationLevel.WARNING,
  )
  @JvmStatic
  fun createFactory(callFactory: Call.Factory): EventSource.Factory = callFactory.asEventSourceFactory()

  @Deprecated(
    message = "Moved to extension function.",
    replaceWith =