fn par_join(self) -> JoinParIter<Self>
    where
        Self: Sized,
    {
        if <Self as Join>::is_unconstrained() {
            log::warn!(
                "`ParJoin` possibly iterating through all indices, you might've made a join with all `MaybeJoin`s, which is unbounded in length."
            );
        }

        JoinParIter(self)
    }
/// Create a joined parallel iterator over the contents.
Create a joined parallel iterator over the contents.
Create a joined parallel iterator over the contents .
fn par_join(self) -> JoinParIter<Self>
    where
        Self: Sized,
    {
        if <Self as Join>::is_unconstrained() {
            log::warn!(
                "`ParJoin` possibly iterating through all indices, you might've made a join with all `MaybeJoin`s, which is unbounded in length."
            );
        }
        JoinParIter(self)
    }
fn par_join ( self ) -> JoinParIter < Self > where Self : Sized , { if < Self as Join > :: is_unconstrained ( ) { log :: warn ! ( " " ) ; } JoinParIter ( self ) }
Create a joined parallel iterator over the contents.
Create a joined parallel iterator over the contents .
self