def remove_node_with_comma(target)
      expression = target.loc.expression
      comma_pos = expression.source_buffer.source.rindex(',', expression.begin_pos)
      rewriter.remove(expression.with(begin_pos: comma_pos))
    end
def remove_node_with_comma(target)
      expression = target.loc.expression
      comma_pos = expression.source_buffer.source.rindex(',', expression.begin_pos)
      rewriter.remove(expression.with(begin_pos: comma_pos))
    end
Remove node with preceding comma.