Minimal code refractor of connector classes

modules/module_connection.py

@@ -44,9 +44,8 @@ class WordExplorerConnector(Connector):
         **kwargs
     ) -> None:
 
-        if 'embedding' in kwargs:
-            embedding = kwargs.get('embedding')
-        else:
+        embedding = kwargs.get('embedding', None)
+        if embedding is None:
             raise KeyError
         
         self.word_explorer = WordExplorer(
@@ -115,9 +114,8 @@ class BiasWordExplorerConnector(Connector):
         **kwargs
     ) -> None:
 
-        if 'embedding' in kwargs:
-            embedding = kwargs.get('embedding')
-        else:
+        embedding = kwargs.get('embedding', None)
+        if embedding is None:
             raise KeyError
 
         self.bias_word_explorer_2_spaces = WEBiasExplorer2Spaces(