code: public static <K, V> MapMatcher<K, V> expect(Map<K, V> value) {
  		return new MapMatcher<>(value);
  	}
docs: Creates a new {@link com.mscharhag.oleaster.matcher.matchers.MapMatcher} initialized with
  the passed {@code value}.
  <p>The returned matcher can be used to check {@code Map} values.
  <pre>
  expect(map).toContainValue("foo");
  expect(map).toHaveSize(3);
  </pre>
  @see com.mscharhag.oleaster.matcher.matchers.MapMatcher
  @param value the value that should be checked
  @return a new {@code MapMatcher} initialized with {@code value}