doc(testing): Clarify 'myapp' example code

falcon/testing/__init__.py

@@ -24,13 +24,17 @@
     # -----------------------------------------------------------------
 
     from falcon import testing
-    from myapp import api
+    import myapp
 
 
     class MyTestCase(testing.TestCase):
         def setUp(self):
             super(MyTestCase, self).setUp()
-            self.app = api.create()
+
+            # Assume the hypothetical `myapp` package has a
+            # function called `create()` to initialize and
+            # return a `falcon.API` instance.
+            self.app = myapp.create()
 
 
     class TestMyApp(MyTestCase):
@@ -48,12 +52,15 @@ def test_get_message(self):
     from falcon import testing
     import pytest
 
-    from myapp import api
+    import myapp
 
 
     @pytest.fixture(scope='module')
     def client():
-        return testing.TestClient(api.create())
+        # Assume the hypothetical `myapp` package has a
+        # function called `create()` to initialize and
+        # return a `falcon.API` instance.
+        return testing.TestClient(myapp.create())
 
 
     def test_get_message(client):