Minimal code refractor of connector classes

modules/module_connection.py

@@ -45,7 +45,7 @@ class WordExplorerConnector(Connector):
     ) -> None:
 
         embedding = kwargs.get('embedding', None)
-        if 'embedding' is None:
+        if embedding is None:
             raise KeyError
         
         self.word_explorer = WordExplorer(
@@ -115,7 +115,7 @@ class BiasWordExplorerConnector(Connector):
     ) -> None:
 
         embedding = kwargs.get('embedding', None)
-        if 'embedding' is None:
+        if embedding is None:
             raise KeyError
 
         self.bias_word_explorer_2_spaces = WEBiasExplorer2Spaces(