parameters: (self)
return_statement: return (self.args[0].is_nonneg(), self.args[0].is_nonpos())
docstring: Returns sign (is positive, is negative) of the expression.
docstring_summary: Returns sign (is positive, is negative) of the expression.
docstring_tokens: Returns sign ( is positive is negative ) of the expression .
function: def sign_from_args(self) -> Tuple[bool, bool]:
          """Returns sign (is positive, is negative) of the expression.
          """
          # Same as argument.
          return (self.args[0].is_nonneg(), self.args[0].is_nonpos())
function_tokens: def sign_from_args ( self ) -> Tuple [ bool , bool ] : # Same as argument. return ( self . args [ 0 ] . is_nonneg ( ) , self . args [ 0 ] . is_nonpos ( ) )