in util/src/main/java/com/spotify/hamcrest/util/DescriptionUtils.java [124:137]
private static void describeMismatchForKey(
String key,
Description mismatchDescription,
BiConsumer<String, Description> describeKey,
Consumer<Description> innerAction) {
mismatchDescription.appendText(" ");
describeKey.accept(String.valueOf(key), mismatchDescription);
mismatchDescription.appendText(": ");
final Description innerDescription = new StringDescription();
innerAction.accept(innerDescription);
indentDescription(mismatchDescription, innerDescription);
}