appendHyphen = true
	}
	if p.sealMD5Fn != nil {
		md5sumCurr = p.sealMD5Fn(md5sumCurr)
	}
	if appendHyphen {
		// Make sure to return etag string upto 32 length, for SSE
		// requests ETag might be longer and the code decrypting the
		// ETag ignores ETag in multipart ETag form i.e <hex>-N
		return hex.EncodeToString(md5sumCurr)[:32] + "-1"
	}
	return hex.EncodeToString(md5sumCurr)
}

Understanding C

Cgo scans the Go source files that import "C" for uses of that
package, such as C.puts. It collects all such identifiers. The next
step is to determine each kind of name. In C.xxx the xxx might refer
to a type, a function, a constant, or a global variable. Cgo must
decide which.

The obvious thing for cgo to do is to process the preamble, expanding

     * Entry object is likely to have a non-final value field, which is not safe to read when
     * unsafely published. (The Entry object might even be newly created by each iterator.next()
     * call, so we can't assume that writes to the Entry have been safely published by some other
     * synchronization actions.)
     *

    return construct(e1, e2, e3, e4, e5, e6, e7, e8, e9, e10, e11);
  }

  // These go up to eleven. After that, you just get the varargs form, and
  // whatever warnings might come along with it. :(

  /**
   * Returns an immutable list containing the given elements, in order.
   *
   * <p>The array {@code others} must not be longer than {@code Integer.MAX_VALUE - 12}.
   *

              notifyAll()
            }
          }
        }
      }

      // Update the connection flow control, as this is a shared resource.
      // Even if our stream doesn't need more data, others might.
      // But delay updating the stream flow control until that stream has been
      // consumed
      updateConnectionFlowControl(byteCount)

      // Notify that buffer size changed

          } catch (AccessControlException e) {
            // OK: the method is accessible to us anyway. The setAccessible call is only for
            // unusual execution environments where that might not be true.
          }
          builder.put(method.getName(), method);
        }
      }
      typeVariableMethods = builder.buildKeepingLast();
    }

# Development - Contributing

First, you might want to see the basic ways to [help FastAPI and get help](help-fastapi.md){.internal-link target=_blank}.

## Developing

If you already cloned the <a href="https://github.com/fastapi/fastapi" class="external-link" target="_blank">fastapi repository</a> and you want to deep dive in the code, here are some guidelines to set up your environment.

### Virtual environment

		// validate token for temporary credentials only.
		return nil, ErrInvalidToken
	}

	// Expired credentials must return error right away.
	if cred.IsTemp() && cred.IsExpired() {
		return nil, toAPIErrorCode(r.Context(), errInvalidAccessKeyID)
	}
	secret := globalActiveCred.SecretKey

   * Objects.equals(o, element)} would return {@code true}. Otherwise returns {@code false}, even in
   * cases where {@link Collection#contains} might throw {@link NullPointerException} or {@link
   * ClassCastException}.
   */
  public static boolean contains(Iterable<?> iterable, @Nullable Object element) {
    if (iterable instanceof Collection) {

        if (layout == null) {
            layout = new UnknownRepositoryLayout(id, layouts.get("default"));
        }

        return layout;
    }

    /**
     * In the future, the legacy system might encounter repository types for which no layout components exists because
     * the actual communication with the repository happens via a repository connector. As a minimum, the legacy system