def _declare(self, var):
        """ Declare the variable `var` """
        if var.name in self._declarations:
            raise ValueError('Variable already declared')
        self._declarations[var.name] = var
        return var
def _declare(self, var):
        """ Declare the variable `var` """
        if var.name in self._declarations:
            raise ValueError('Variable already declared')
        self._declarations[var.name] = var
        return var
def _declare ( self , var ) : if var . name in self . _declarations : raise ValueError ( 'Variable already declared' ) self . _declarations [ var . name ] = var return var
Declare the variable `var`
Declare the variable var