/// Returns the next bundle in the input for which `is_significant` is true.
Returns the next bundle in the input for which `is_significant` is true.
Returns the next bundle in the input for which ` is_significant ` is true .
fn next_significant(&mut self) -> Option<Spanned<Bundle>> {
        while let Some(v) = self.inner.next() {
            if v.value.is_significant() {
                return Some(v);
            }
        }
        None
    }
fn next_significant ( & mut self ) -> Option < Spanned < Bundle > > { while let Some ( v ) = self . inner . next ( ) { if v . value . is_significant ( ) { return Some ( v ) ; } } None }
Returns the next bundle in the input for which `is_significant` is true.
Returns the next bundle in the input for which ` is_significant ` is true .
&mut self