---

"_If you're looking to learn one **modern framework** for building REST APIs, check out **FastAPI** [...] It's fast, easy to use and easy to learn [...]_"

"_We've switched over to **FastAPI** for our **APIs** [...] I think you'll like it [...]_"

  require(address.size == 4)
  return Buffer()
    .writeDecimalLong((address[0] and 0xff).toLong())
    .writeByte('.'.code)
    .writeDecimalLong((address[1] and 0xff).toLong())
    .writeByte('.'.code)
    .writeDecimalLong((address[2] and 0xff).toLong())
    .writeByte('.'.code)
    .writeDecimalLong((address[3] and 0xff).toLong())
    .readUtf8()
}

/**

      it is ConnectionReleased ||
      it is Canceled ||
      it is RequestFailed ||
      it is ResponseFailed

  private fun sleep(delayMillis: Int) {
    try {
      Thread.sleep(delayMillis.toLong())
    } catch (e: InterruptedException) {
      Thread.currentThread().interrupt()
    }
  }

  private fun cancelLater(
    call: Call,
    delayMillis: Int,
  ): CountDownLatch {

---

"_If you're looking to learn one **modern framework** for building REST APIs, check out **FastAPI** [...] It's fast, easy to use and easy to learn [...]_"

"_We've switched over to **FastAPI** for our **APIs** [...] I think you'll like it [...]_"

                (et, vl) -> ((User) et).setFacsimileTelephoneNumber(DfTypeUtil.toString(vl)), "facsimileTelephoneNumber");
        setupEpg(_epgMap, et -> ((User) et).getGidNumber(), (et, vl) -> ((User) et).setGidNumber(DfTypeUtil.toLong(vl)), "gidNumber");
        setupEpg(_epgMap, et -> ((User) et).getGivenName(), (et, vl) -> ((User) et).setGivenName(DfTypeUtil.toString(vl)), "givenName");

}

// hashOrder - hashes input key to return consistent
// hashed integer slice. Returned integer order is salted
// with an input key. This results in consistent order.
// NOTE: collisions are fine, we are not looking for uniqueness
// in the slices returned.
func hashOrder(key string, cardinality int) []int {
	if cardinality <= 0 {
		// Returns an empty int slice for cardinality < 0.
		return nil
	}

          body =
            object : RequestBody() {
              override fun contentType(): MediaType = "text/plain; charset=utf-8".toMediaType()

              override fun contentLength(): Long = postBytes.size.toLong()

              override fun writeTo(sink: BufferedSink) {
                sink.write(postBytes)
              }
            },
        ),
      )
    val response = call.execute()

---

"_If you're looking to learn one **modern framework** for building REST APIs, check out **FastAPI** [...] It's fast, easy to use and easy to learn [...]_"

"_We've switched over to **FastAPI** for our **APIs** [...] I think you'll like it [...]_"

*   Fixes an FPE in TFLite division operations
    ([CVE-2021-37683](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37683))
*   Fixes an FPE in TFLite pooling operations
    ([CVE-2021-37684](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37684))
*   Fixes an infinite loop in TFLite
    ([CVE-2021-37686](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37686))

{* ../../docs_src/handling_errors/tutorial005.py hl[14] *}

Now try sending an invalid item like:

```JSON
{
  "title": "towel",
  "size": "XL"
}
```

You will receive a response telling you that the data is invalid containing the received body:

```JSON hl_lines="12-15"
{
  "detail": [
    {
      "loc": [
        "body",
        "size"
      ],