parameters: (self, arg)
docstring: unalias name
          Delete the specified alias.
docstring_summary: unalias name
          Delete the specified alias.
docstring_tokens: unalias name Delete the specified alias .
function: def do_unalias(self, arg):
          """unalias name
          Delete the specified alias.
          """
          args = arg.split()
          if len(args) == 0: return
          if args[0] in self.aliases:
              del self.aliases[args[0]]
function_tokens: def do_unalias ( self , arg ) : args = arg . split ( ) if len ( args ) == 0 : return if args [ 0 ] in self . aliases : del self . aliases [ args [ 0 ] ]