examples/org.eclipse.epsilon.examples.eolqueries.queries/src/org/eclipse/epsilon/examples/eolqueries/queries/queries.eol - epsilon/org.eclipse.epsilon - Git at Google

 operation Library!Book getAuthorNames() {
 	return self.authors.collect(a|a.name).concat(',');
 }

 operation Library!Book getAuthors() {
 	return self.authors;
 }
	operation Library!Book getAuthorNames() {
	return self.authors.collect(a\|a.name).concat(',');
	}

	operation Library!Book getAuthors() {
	return self.authors;
	}