grammatical changes to documentation for random_speaker

Author: Leo

convokit/model/corpus.py

@@ -417,7 +417,7 @@ def random_utterance(self, selector: Optional[Callable[[Utterance], bool]] = Non
         count = 0
         selected_utterance = None
 
-        if selector == None:
+        if selector is None:
             return random.choice(list(self.utterances.values()))
         # Iterate over utterances directly from the generator
         for utterance in self.iter_utterances():
@@ -438,7 +438,7 @@ def random_conversation(
         """
         Get a random Conversation from the Corpus, with an optional selector that filters for Conversations that should be considered.
 
-        :param selecter: a (lamda) function that takes a Conversation and returns True or False.(i.e. consider / not consider).
+        :param selecter: a (lambda) function that takes a Conversation and returns True or False.(i.e. consider / not consider).
             By default, the selector considers all Conversations in the Corpus.
         :return: a random Conversation that in the Corpus that is considered based on the selector
         """
@@ -465,7 +465,7 @@ def random_speaker(self, selector: Optional[Callable[[Speaker], bool]] = None) -
         """
         Get a random Speaker from the Corpus, with an optional selector that filters for Speakers that should be considered.
 
-        :param selector: a (lambda) function that takes an Speaker and returns True or False (i.e. consider / not consider).
+        :param selector: a (lambda) function that takes a Speaker and returns True or False (i.e. consider / not consider).
             By default, the selector considers all Speakers in the Corpus.
         :return: a random Speaker that in the Corpus that is considered based on the selector.
         """