Add custom async matchers

src/core/requireInterface.js

@@ -302,6 +302,20 @@ getJasmineRequireObj().interface = function(jasmine, env) {
     return env.addMatchers(matchers);
   };
 
+  /**
+   * Add custom async matchers for the current scope of specs.
+   *
+   * _Note:_ This is only callable from within a {@link beforeEach}, {@link it}, or {@link beforeAll}.
+   * @name jasmine.addMatchers
+   * @since 3.5.0
+   * @function
+   * @param {Object} matchers - Keys from this object will be the new async matcher names.
+   * @see custom_matcher
+   */
+  jasmine.addAsyncMatchers = function(matchers) {
+    return env.addAsyncMatchers(matchers);
+  };
+
   /**
    * Get the currently booted mock {Clock} for this Jasmine environment.
    * @name jasmine.clock