def real(self, nested_scope=None):
operation = self.children[<NUM_LIT:0>].operation()<EOL>lhs = self.children[<NUM_LIT:1>].real(nested_scope)<EOL>rhs = self.children[<NUM_LIT:2>].real(nested_scope)<EOL>return operation(lhs, rhs)<EOL>
Return the correspond floating point number.