This member is added by an implicit conversion from ExtensionLowPriority to
any2stringadd[ExtensionLowPriority] performed by method any2stringadd in scala.Predef.
This member is added by an implicit conversion from ExtensionLowPriority to
StringFormat[ExtensionLowPriority] performed by method StringFormat in scala.Predef.
trick to reduce implicit priority