Get children slice OR full range.
Efl.Model.children_slice_get behaves in two different ways, it may provide the slice if count
is non-zero OR full range otherwise.
Since 'slice' is a range, for example if we have 20 children a slice could be the range from 3(start) with 4(count), see:
child 0 [no] child 1 [no] child 2 [no] child 3 [yes] child 4 [yes] child 5 [yes] child 6 [yes] child 7 [no]
Optionally the user can call Efl.Model.children_count.get to know the number of children so a valid range can be known in advance.
See Efl.Model.children_count.get
Since 1.23
children_slice_get @pure_virtual { params { @in start: uint; @in count: uint; } return: future<array<Efl.Object>>; }
Eina_Future *efl_model_children_slice_get(Eo *obj, unsigned int start, unsigned int count);