code: public <A> Q bind(Path<A> entity, Iterable<? extends A> col) {
          iterables.put(entity, col);
          return queryMixin.getSelf();
      }
docs: Bind the given collection to an already existing query source
  
  @param <A> type of expression
  @param entity Path for the source
  @param col content of the source
  @return current object