Numeric Delegation Issue

gistfile1.txt

#2023.04

role DataSlice does Positional does Iterable {
    has Any     @.data;

    # Positional role support
    # viz. https://docs.raku.org/type/Positional

    method of {
        Any 
    }   
    method elems {
        @!data.elems
    }   
    method AT-POS( $p ) { 
        @!data[$p]
    }   
    method EXISTS-POS( $p ) { 
        0 <= $p < @!data.elems ?? True !! False
    }   

    # Iterable role support
    # viz. https://docs.raku.org/type/Iterable

    method iterator {
        @!data.iterator
    }   
    method flat {
        @!data.flat
    }   
    method lazy {
        @!data.lazy
    }   
    method hyper {
        @!data.hyper
    }   
}

my \dss = DataSlice.new( data => [1, 3, 5, 42, 6, 8] );
say ~dss;
say [+] dss.data;          #65 
say [+] dss;

#`[
Cannot resolve caller Numeric(DataSlice:D: ); none of these signatures matches:
    (Mu:U \v: *%_)
  in block <unit> at ./scum.raku line 43

#]