* IllegalArgumentException}.
   */
  boolean allowsSelfLoops();

  /** Returns the order of iteration for the elements of {@link #nodes()}. */
  ElementOrder<N> nodeOrder();

  //
  // Element-level accessors
  //

  /**
   * Returns a live view of the nodes which have an incident edge in common with {@code node} in
   * this graph.
   *

		if _, ok := query[v4PresignQueryParam]; !ok {
			return ErrInvalidQueryParams
		}
	}
	return ErrNone
}

// Parses all the presigned signature values into separate elements.
func parsePreSignV4(query url.Values, region string, stype serviceType) (psv preSignValues, aec APIErrorCode) {
	// verify whether the required query params exist.
	aec = doesV4PresignParamsExist(query)
	if aec != ErrNone {

			wantResult: `{"_1":1.5,"_2":2.5}`,
		},
		{
			name:  "limit-1",
			query: `SELECT * FROM S3Object[*].elements[*] LIMIT 1`,
			requestXML: []byte(`
<?xml version="1.0" encoding="UTF-8"?>
<SelectObjectContentRequest>
    <Expression>select * from s3object[*].elements[*] s where s.element_type = '__elem__merfu'</Expression>
    <ExpressionType>SQL</ExpressionType>
    <InputSerialization>

        )
    }

    private
    fun findVersionFromJavadoc(javadoc: Javadoc): String? =
        javadoc.blockTags
            .find { tag -> tag.tagName == "since" }
            ?.content?.elements?.find { description -> description is JavadocSnippet }
            ?.toText()

    private
    fun nodeName(it: Node?, unit: CompilationUnit, file: File) = when (it) {

   * returns {@code null}, returns a map containing null keys or values, or fails to return an entry
   * for each requested key.
   *
   * <p>Note that duplicate elements in {@code keys}, as determined by {@link Object#equals}, will
   * be ignored.
   *
   * @throws ExecutionException if a checked exception was thrown while loading the value. ({@code
   *     ExecutionException} is thrown <a

  public void testRemoveAtIndex_last() {
    runRemoveTest(getNumElements() - 1);
  }

  private void runRemoveTest(int index) {
    assertEquals(
        Platform.format("remove(%d) should return the element at index %d", index, index),
        getList().get(index),
        getList().remove(index));
    List<E> expected = copyToList(createSamplesArray());
    expected.remove(index);
    expectContents(expected);
  }

        if (javahome == null) {
            throw new MisconfiguredToolchainException(
                    "Java toolchain without the " + JavaToolchainImpl.KEY_JAVAHOME + " configuration element.");
        }
        Path normal = Paths.get(javahome.getValue()).normalize();
        if (Files.exists(normal)) {
            jtc.setJavaHome(Paths.get(javahome.getValue()).normalize().toString());
        } else {

      this.chunks = chunks;
      this.chunkShift = chunkShift;
      this.chunkMask = (1 << chunkShift) - 1;
      int total = 0;
      for (CharSequence element : chunks) {
        total += element.length();
      }
      this.length = total;
    }

    @Override
    public int length() {
      return length;
    }

    @Override
    public char charAt(int index) {

import org.codehaus.plexus.components.secdispatcher.model.ConfigProperty;
import org.codehaus.plexus.components.secdispatcher.model.SettingsSecurity;
import org.jline.consoleui.elements.ConfirmChoice;
import org.jline.consoleui.prompt.ConfirmResult;
import org.jline.consoleui.prompt.ConsolePrompt;
import org.jline.consoleui.prompt.PromptResultItemIF;
import org.jline.consoleui.prompt.builder.ListPromptBuilder;

    List<E> containsNull = singletonList(null);
    assertTrue("addAll(n, containsNull) should return true", getList().addAll(0, containsNull));
    /*
     * We need (E) to force interpretation of null as the single element of a
     * varargs array, not the array itself
     */
    expectAdded(0, (E) null);
  }

  @ListFeature.Require(SUPPORTS_ADD_WITH_INDEX)
  @CollectionFeature.Require(absent = ALLOWS_NULL_VALUES)