Resolve ambiguity with apprise.plugins module namespace

While the namespace is physically made of modules, it has been amended
to be the namespace home for the corresponding notifier classes as well.

This turned out to confuse both humans and machines on various ends.

While it has apparently worked for a while, it croaks on Python 3.11
now, and is not considered to have been a good idea in general.

test/test_plugin_pushed.py

@@ -26,7 +26,8 @@ from unittest import mock
 
 import pytest
 import requests
-from apprise import plugins
+
+from apprise.plugins.NotifyPushed import NotifyPushed
 from helpers import AppriseURLTester
 
 # Disable logging for a cleaner testing output
@@ -48,15 +49,15 @@ apprise_url_tests = (
     }),
     # Application Key+Secret
     ('pushed://%s/%s' % ('a' * 32, 'a' * 64), {
-        'instance': plugins.NotifyPushed,
+        'instance': NotifyPushed,
     }),
     # Application Key+Secret + channel
     ('pushed://%s/%s/#channel/' % ('a' * 32, 'a' * 64), {
-        'instance': plugins.NotifyPushed,
+        'instance': NotifyPushed,
     }),
     # Application Key+Secret + channel (via to=)
     ('pushed://%s/%s?to=channel' % ('a' * 32, 'a' * 64), {
-        'instance': plugins.NotifyPushed,
+        'instance': NotifyPushed,
         # Our expected url(privacy=True) startswith() response:
         'privacy_url': 'pushed://a...a/****/',
     }),
@@ -67,65 +68,65 @@ apprise_url_tests = (
     }),
     # Application Key+Secret + 2 channels
     ('pushed://%s/%s/#channel1/#channel2' % ('a' * 32, 'a' * 64), {
-        'instance': plugins.NotifyPushed,
+        'instance': NotifyPushed,
     }),
     # Application Key+Secret + User Pushed ID
     ('pushed://%s/%s/@ABCD/' % ('a' * 32, 'a' * 64), {
-        'instance': plugins.NotifyPushed,
+        'instance': NotifyPushed,
     }),
     # Application Key+Secret + 2 devices
     ('pushed://%s/%s/@ABCD/@DEFG/' % ('a' * 32, 'a' * 64), {
-        'instance': plugins.NotifyPushed,
+        'instance': NotifyPushed,
     }),
     # Application Key+Secret + Combo
     ('pushed://%s/%s/@ABCD/#channel' % ('a' * 32, 'a' * 64), {
-        'instance': plugins.NotifyPushed,
+        'instance': NotifyPushed,
     }),
     # ,
     ('pushed://%s/%s' % ('a' * 32, 'a' * 64), {
-        'instance': plugins.NotifyPushed,
+        'instance': NotifyPushed,
         # force a failure
         'response': False,
         'requests_response_code': requests.codes.internal_server_error,
     }),
     ('pushed://%s/%s' % ('a' * 32, 'a' * 64), {
-        'instance': plugins.NotifyPushed,
+        'instance': NotifyPushed,
         # throw a bizzare code forcing us to fail to look it up
         'response': False,
         'requests_response_code': 999,
     }),
     ('pushed://%s/%s' % ('a' * 32, 'a' * 64), {
-        'instance': plugins.NotifyPushed,
+        'instance': NotifyPushed,
         # Throws a series of connection and transfer exceptions when this flag
         # is set and tests that we gracfully handle them
         'test_requests_exceptions': True,
     }),
     ('pushed://%s/%s' % ('a' * 32, 'a' * 64), {
-        'instance': plugins.NotifyPushed,
+        'instance': NotifyPushed,
         # force a failure
         'response': False,
         'requests_response_code': requests.codes.internal_server_error,
     }),
     ('pushed://%s/%s' % ('a' * 32, 'a' * 64), {
-        'instance': plugins.NotifyPushed,
+        'instance': NotifyPushed,
         # throw a bizzare code forcing us to fail to look it up
         'response': False,
         'requests_response_code': 999,
     }),
     ('pushed://%s/%s/#channel' % ('a' * 32, 'a' * 64), {
-        'instance': plugins.NotifyPushed,
+        'instance': NotifyPushed,
         # throw a bizzare code forcing us to fail to look it up
         'response': False,
         'requests_response_code': 999,
     }),
     ('pushed://%s/%s/@user' % ('a' * 32, 'a' * 64), {
-        'instance': plugins.NotifyPushed,
+        'instance': NotifyPushed,
         # throw a bizzare code forcing us to fail to look it up
         'response': False,
         'requests_response_code': 999,
     }),
     ('pushed://%s/%s' % ('a' * 32, 'a' * 64), {
-        'instance': plugins.NotifyPushed,
+        'instance': NotifyPushed,
         # Throws a series of connection and transfer exceptions when this flag
         # is set and tests that we gracfully handle them
         'test_requests_exceptions': True,
@@ -166,49 +167,49 @@ def test_plugin_pushed_edge_cases(mock_post, mock_get, no_throttling):
 
     # No application Key specified
     with pytest.raises(TypeError):
-        plugins.NotifyPushed(
+        NotifyPushed(
             app_key=None,
             app_secret=app_secret,
             recipients=None,
         )
 
     with pytest.raises(TypeError):
-        plugins.NotifyPushed(
+        NotifyPushed(
             app_key="  ",
             app_secret=app_secret,
             recipients=None,
         )
     # No application Secret specified
     with pytest.raises(TypeError):
-        plugins.NotifyPushed(
+        NotifyPushed(
             app_key=app_key,
             app_secret=None,
             recipients=None,
         )
 
     with pytest.raises(TypeError):
-        plugins.NotifyPushed(
+        NotifyPushed(
             app_key=app_key,
             app_secret="   ",
         )
 
     # recipients list set to (None) is perfectly fine; in this case it will
     # notify the App
-    obj = plugins.NotifyPushed(
+    obj = NotifyPushed(
         app_key=app_key,
         app_secret=app_secret,
         recipients=None,
     )
-    assert isinstance(obj, plugins.NotifyPushed) is True
+    assert isinstance(obj, NotifyPushed) is True
     assert len(obj.channels) == 0
     assert len(obj.users) == 0
 
-    obj = plugins.NotifyPushed(
+    obj = NotifyPushed(
         app_key=app_key,
         app_secret=app_secret,
         targets=recipients,
     )
-    assert isinstance(obj, plugins.NotifyPushed) is True
+    assert isinstance(obj, NotifyPushed) is True
     assert len(obj.channels) == 2
     assert len(obj.users) == 2