@SuppressWarnings("unchecked")
	public F label(String label) {
		Assert.hasText(label, "Label should not be null nor empty");
		this.label = label;
		return (F) this;
	}
Sets the label for the fixture.
@param label The name to be associated with the label.
@return the current instance of the module fixture.
spring-xd-test-fixtures/src/main/java/org/springframework/xd/test/fixtures/AbstractModuleFixture.java