.put(5, "Pinky")
            .put(5, "Clyde")
            .build();

    final List<String> badGuys = Arrays.asList("Inky", "Blinky", "Pinky", "Pinky", "Clyde");
    final Function<String, Integer> stringLengthFunction =
        new Function<String, Integer>() {
          @Override
          public Integer apply(String input) {
            return input.length();
          }
        };

     * For example, `foo.Foo.bar` may only refer to the extension callable `bar` with
     * a `foo.Foo` receiver type, and this function will only look for such combinations.
     *
     * N.B. This function only searches for extension callables qualified by receiver types!
     * It does not try to resolve fully qualified or member functions, because they are dealt
     * with by the other parts of [KDocReferenceResolver].
     */

import java.io.Serializable;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.NoSuchElementException;
import java.util.function.BiFunction;
import java.util.function.Function;
import java.util.stream.Collector;
import javax.annotation.CheckForNull;
import org.checkerframework.checker.nullness.qual.Nullable;

/**

A "middleware" is basically a function that is always executed for each request, with some code executed before, and some code executed after the endpoint function.

### Create a middleware

The middleware we'll add (just a function) will create a new SQLAlchemy `SessionLocal` for each request, add it to the request and then close it once the request is finished.

// admin-handler unit tests.
type adminErasureTestBed struct {
	erasureDirs []string
	objLayer    ObjectLayer
	router      *mux.Router
	done        context.CancelFunc
}

// prepareAdminErasureTestBed - helper function that setups a single-node
// Erasure backend for admin-handler tests.
func prepareAdminErasureTestBed(ctx context.Context) (*adminErasureTestBed, error) {
	ctx, cancel := context.WithCancel(ctx)

            .withFeatures(COLLECTION_FEATURES_REMOVE_ORDER)
            .withFeatures(CollectionFeature.SUPPORTS_ITERATOR_REMOVE)
            .createTestSuite());

    final Function<String, String> removeFirstCharacter =
        new Function<String, String>() {
          @Override
          public String apply(String input) {
            return input.substring(1);
          }
        };

    suite.addTest(

	inputHeader.Set("X-Amz-Meta-Name", expectedMetaName)
	// calling the function being tested.
	errCode := checkMetaHeaders(signedHeadersMap, r)
	if errCode != ErrNone {
		t.Fatalf("Expected the APIErrorCode to be %d, but got %d", ErrNone, errCode)
	}

	// Add new metadata in inputHeader
	inputHeader.Set("X-Amz-Meta-Clone", "fail")
	// calling the function being tested.
	errCode = checkMetaHeaders(signedHeadersMap, r)

            Errors.ITERATOR_AMBIGUITY,
        )

        val diagnosticWithResolvedCallsAtPosition2 = setOf(
            Errors.COMPONENT_FUNCTION_AMBIGUITY,
            Errors.DELEGATE_SPECIAL_FUNCTION_AMBIGUITY,
            Errors.DELEGATE_SPECIAL_FUNCTION_NONE_APPLICABLE,
            Errors.DELEGATE_PD_METHOD_NONE_APPLICABLE,
        )

          Function<? super T, ? extends K> keyFunction,
          Function<? super T, ? extends V> valueFunction) {
    return CollectCollectors.toImmutableMap(keyFunction, valueFunction);
  }

  public static <T extends @Nullable Object, K, V>
      Collector<T, ?, ImmutableMap<K, V>> toImmutableMap(
          Function<? super T, ? extends K> keyFunction,
          Function<? super T, ? extends V> valueFunction,

}

char* TF_FunctionDebugString(TF_Function* func, size_t* len) {
  const auto& debug_str = DebugString(func->record->fdef());
  *len = debug_str.size();
  char* ret = static_cast<char*>(malloc(*len + 1));
  memcpy(ret, debug_str.c_str(), *len + 1);
  return ret;
}

// On success, returns a set of TF_Function instances from `text_proto` of
// GraphDef type. These functions must be deleted by calling TF_DeleteFunction.
//