This member is added by an implicit conversion from Collect2[P, Q, S] to
any2stringadd[Collect2[P, Q, S]] performed by method any2stringadd in scala.Predef.
This member is added by an implicit conversion from Collect2[P, Q, S] to
StringFormat[Collect2[P, Q, S]] performed by method StringFormat in scala.Predef.