public void setFastRank(boolean value) {
        Supplier<IllegalArgumentException> badGen = () ->
                new IllegalArgumentException("The " + toString() + " does not support 'fast-rank'. " +
                        "Only supported for tensor types with at least one mapped dimension");
        var tt = tensorType.orElseThrow(badGen);
        for (var dim : tt.dimensions()) {
            if (dim.isMapped()) {
                this.fastRank = value;
                return;
            }
        }
        throw badGen.get();
    }
Sets whether this should be included in the "attributeprefetch" document summary.
True or false to override default, null to use default
config-model/src/main/java/com/yahoo/schema/document/Attribute.java