code: def create(self, **kwargs):
          
          Statement = self.get_model('statement')
  
          if 'tags' in kwargs:
              kwargs['tags'] = list(set(kwargs['tags']))
  
          if 'search_text' not in kwargs:
              kwargs['search_text'] = self.tagger.get_bigram_pair_string(kwargs['text'])
  
          if 'search_in_response_to' not in kwargs:
              if kwargs.get('in_response_to'):
                  kwargs['search_in_response_to'] = self.tagger.get_bigram_pair_string(kwargs['in_response_to'])
  
          inserted = self.statements.insert_one(kwargs)
  
          kwargs['id'] = inserted.inserted_id
  
          return Statement(**kwargs)
docs: Creates a new statement matching the keyword arguments specified.
          Returns the created statement.