Revert (#2089) "fixed description of class file"
Revert (#2089) "fixed description of class file"

This reverts commit cf16768ec4e8bc6b62fdb121d033e5bc169e4d21.

nise-nabe/ppcon-sns,tejima/OP3PKG,tejima/OP3PKG,openpne/OpenPNE3,openpne/OpenPNE3,openpne/OpenPNE3,nise-nabe/ppcon-sns,openpne/OpenPNE3