public static <T extends AbstractMetricSink> MetricExistsMatcher<T> exists() {
		return new MetricExistsMatcher<T>();
	}
Utility class that provides static factory methods for {@link Matcher}s in this package.

@author Eric Bottard
@author David Turanski
spring-xd-shell/src/test/java/org/springframework/xd/shell/command/fixtures/XDMatchers.java