parameters: (self, name, start, end)
docstring: This method trims the redis list, removing all elements not within the
          slice bounds.
function: def ltrim(self, name, start, end):
          '''
  
          This method trims the redis list, removing all elements not within the
          slice bounds.
  
          '''
  
          self.server.ltrim(name, start, end)
function_tokens: def ltrim ( self , name , start , end ) : self . server . ltrim ( name , start , end )