// in combination with immutable cache entries, will ensure a thread-safe cache.
    CacheEntry<K, V> entry;

    // Check cache. We use == on purpose because it's cheaper and a cache miss is ok.
    entry = cacheEntry1;
    if (entry != null && entry.key == key) {
      return entry.value;
    }
    entry = cacheEntry2;
    if (entry != null && entry.key == key) {

        call_id = buf.dec_ndr_long();
    }
    public void encode(NdrBuffer buf) throws NdrException {
        int start = buf.getIndex();
        int alloc_hint_index = 0;

        buf.advance(16); /* momentarily skip header */
        if (ptype == 0) { /* Request */
            alloc_hint_index = buf.getIndex();
            buf.enc_ndr_long(0); /* momentarily skip alloc hint */
            buf.enc_ndr_short(0); /* context id */

	if err != nil {
		return err
	}
	for k, v := range ret {
		if !strings.EqualFold(k, "authorization") {
			if _, ok := dst[k]; ok {
				return fmt.Errorf("underlying %s credentials contain a %s header which is already present in the combined credentials", kind, k)
			}
			dst[k] = v
		} else {
			dst[dstHdr] = v
		}
	}
	return nil
}

type hubMembership struct {
	WorkloadIdentityPool string
}

// parse size from content-range header
func parseSizeFromContentRange(h http.Header) (sz int64, err error) {
	cr := h.Get(xhttp.ContentRange)
	if cr == "" {
		return sz, fmt.Errorf("Content-Range not set")
	}
	parts := contentRangeRegexp.FindStringSubmatch(cr)
	if len(parts) != 4 {
		return sz, fmt.Errorf("invalid Content-Range header %s", cr)
	}
	if parts[3] == "*" {
		return -1, nil
	}

 */
package okhttp3.internal.ws

import okio.Buffer
import okio.ByteString.Companion.encodeUtf8

object WebSocketProtocol {
  /** Magic value which must be appended to the key in a response header. */
  internal const val ACCEPT_MAGIC = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"

  /*
  Each frame starts with two bytes of data.

   0 1 2 3 4 5 6 7    0 1 2 3 4 5 6 7
  +-+-+-+-+-------+  +-+-------------+

    assert response.status_code == 200, response.text
    assert response.headers["content-type"] == "text/html; charset=utf-8"
    assert "window.opener.swaggerUIRedirectOauth2" in response.text


def test_redoc():
    response = client.get("/redoc")
    assert response.status_code == 200, response.text
    assert response.headers["content-type"] == "text/html; charset=utf-8"
    assert "redoc@next" in response.text

  // Requests will be matched against the Host field in the following way:
  // 1. If host is precise, the request matches this rule if the http host header is equal to Host.
  // 2. If host is a wildcard, then the request matches this rule if the http host header
  // is to equal to the suffix (removing the first label) of the wildcard rule.
  // +optional
  optional string host = 1;

    ]
}
```

## Summary

You can use **Pydantic models** to declare **query parameters** in **FastAPI**. 😎

/// tip

Spoiler alert: you can also use Pydantic models to declare cookies and headers, but you will read about that later in the tutorial. 🤫

      response.trailers()
    }
  }

  @Test
  fun worksIfTrailersSet() {
    val response =
      newResponse("".toResponseBody()) {
        trailers {
          Headers.headersOf("a", "b")
        }
      }

    assertThat(response.trailers()["a"]).isEqualTo("b")
  }

  @Test fun peekAfterReadingResponse() {
    val response = newResponse(responseBody("abc"))

Cache Miss will be typical if the item has not been read from the network, is uncacheable, or is past it's 
lifetime based on Response cache headers.

 - CallStart 
 - **CacheMiss**
 - ProxySelectStart
 - ... Standard Events ...
 - CallEnd
        
### Conditional Cache Hit