Shopify Drop-Down Menu : Show collection product count - drop-down-menu

Question

i am working on a Shopify Store here and need to display the product count for each collection in the drop-down sub-menu and somehow I can not figure it out. The documentation is a little bit light on this issue.
I need the product count to be shown only in the sub-menus.
I tried adding the code below but it snot working:
{% if childlink.type == 'collection_link' %}
({{ childlink.object.products_count }})
{%endif%}
Can anyone help me out with this? Below is my code:
<div class="dropdown-menu">
<div class="row tt-col-list">
<div class="col">
<ul class="tt-megamenu-submenu tt-megamenu-preview">
{%- for child_level_2 in level_2.links -%}
<li><span>{{ child_level_2.title }} </span>
{%- capture return -%}{%- include "get_linklist_dropdown", link: child_level_2 -%}{%- endcapture -%}{%- assign return = return | split: "%%" -%}{%- assign has_drop_down = return | first | strip -%}{%- assign child_list_handle = return | last | strip -%}
{%- assign level_3 = linklists[child_list_handle] -%}
{%- if level_3.empty? -%}
{%- assign child_list_handle = child_level_2.title | handle -%}
{%- assign level_3 = linklists[child_list_handle] -%}
{%- endif -%}
{%- if level_3.links != blank -%}
<ul>
{%- for child_level_3 in level_3.links -%}
<li>
<span>{{ child_level_3.title }}</span>
{%- capture return -%}{%- include "get_linklist_dropdown", link: child_level_3 -%}{%- endcapture -%}{%- assign return = return | split: "%%" -%}{%- assign has_drop_down = return | first | strip -%}{%- assign child_list_handle = return | last | strip -%}
{%- assign level_4 = linklists[child_list_handle] -%}
{%- if level_4.empty? -%}
{%- assign child_list_handle = child_level_3.title | handle -%}
{%- assign level_4 = linklists[child_list_handle] -%}
{%- endif -%}
{%- if level_4.links != blank -%}
<ul>
{%- for child_level_4 in level_4.links -%}
<li>
<span>{{ child_level_4.title }}</span>
{%- capture return -%}{%- include "get_linklist_dropdown", link: child_level_4 -%}{%- endcapture -%}{%- assign return = return | split: "%%" -%}{%- assign has_drop_down = return | first | strip -%}{%- assign child_list_handle = return | last | strip -%}
{%- if has_drop_down == "true" -%}
{%- assign level_5 = linklists[child_list_handle] -%}
{%- unless level_5.empty? -%}
<ul>
{%- for child_level_5 in level_5.links -%}
<li>{{ child_level_5.title }}</li>
{%- endfor -%}
</ul>
{%- endunless -%}
{%- endif -%}
</li>
{%- endfor -%}
</ul>
{%- endif -%}
</li>
{%- endfor -%}
</ul>
{%- endif -%}
</li>
{%- endfor -%}
</ul>
</div>
</div>
</div>
</pre>