code: def merge_wheres(self, wheres, bindings):
          
          self.wheres = self.wheres + wheres
          self._bindings['where'] = self._bindings['where'] + bindings
docs: Merge a list of where clauses and bindings
  
          :param wheres: A list of where clauses
          :type wheres: list
  
          :param bindings: A list of bindings
          :type bindings: list
  
          :rtype: None