* Dla żądania `PUT` z ścieżką `/items/{item_id}`, odczyta treść żądania jako JSON:
    * Sprawdzi czy posiada wymagany atrybut `name`, który powinien być typu `str`.
    * Sprawdzi czy posiada wymagany atrybut `price`, który musi być typu `float`.
    * Sprawdzi czy posiada opcjonalny atrybut `is_offer`, który (jeżeli obecny) powinien być typu `bool`.
    * To wszystko będzie również działać dla głęboko zagnieżdżonych obiektów JSON.

## Action Required Before Upgrading

* Important Security-related changes before upgrading
  * You *MUST* set `--anonymous-auth=false` flag on your kube-apiserver unless you are a developer testing this feature and understand it.
  If you do not, you risk allowing unauthorized users to access your apiserver.
  * You *MUST* set `--anonymous-auth=false` flag on your federation apiserver unless you are a developer testing this feature and understand it.

        bool((must, should, mustNot, filter) -> {
            filteredLambda.callback(must, filter);
        }, opLambda);
    }

    public void not(OperatorCall<DataConfigCQ> notLambda) {
        not(notLambda, null);
    }

    public void not(final OperatorCall<DataConfigCQ> notLambda, final ConditionOptionCall<BoolQueryBuilder> opLambda) {

import java.util.List;
import java.util.NoSuchElementException;
import org.junit.Ignore;

/**
 * Tester for navigation of SortedMultisets.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")
// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")

                                // versions. We just clobbered the selected version above. (why? I have no idea.)
                                // So since we are here and this is ranges we must go figure out the version (for a
                                // third time...)
                                if (resetArtifact.getVersion() == null && resetArtifact.getVersionRange() != null) {

 * null-hostile method like {@link ImmutableTable#copyOf}. For alternatives, please see <a
 * href="https://github.com/google/guava/wiki/NewCollectionTypesExplained#table">the wiki</a>.
 *
 * <p>The allowed row and column keys must be supplied when the table is created. The table always
 * contains a mapping for every row key / column pair. The value corresponding to a given row and
 * column is null unless another value is provided.
 *

                        if (response.received && response.resultCode == 0) {

                            /*
                             * Before we return, in anticipation of this address being cached we must
                             * augment the addresses name's hashCode to distinguish those resolved by
                             * Lmhosts, WINS, or BCAST. Otherwise a failed query from say WINS would

   */
  private static boolean isEnterIf(Method method) {
    return method.getName().startsWith("enterIf");
  }

  /** Identifies all waitForXxx methods, which must be called while occupying the monitor. */
  private static boolean isWaitFor(Method method) {
    return method.getName().startsWith("waitFor");
  }

            // 3.2.5.1.9 Handling Compounded Responses
            // The final response in the compounded response chain will have NextCommand equal to 0,
            // and it MUST be processed as an individual message of a size equal to the number of bytes
            // remaining in this receive.
            final int rem = this.readSize - this.length;
            len += rem;
        }

*   When you contribute a new feature to TensorFlow, the maintenance burden is
    (by default) transferred to the TensorFlow team. This means that the benefit
    of the contribution must be compared against the cost of maintaining the
    feature.
*   Full new features (e.g., a new op implementing a cutting-edge algorithm)
    typically will live in