## Description
The need, motivation, and proposed details are described at [[ https://www.wikifunctions.org/wiki/Wikifunctions:Type_proposals/Wikidata_based_types|Wikifunctions:Type_proposals/Wikidata_based_types ]]. This work should take into account the discussions on that page.
This ticket is for wiki-based activities to declare the type and its functions (not for type-specific code changes in Wikifunctions). Work is currently underway at [[ https://www.wikifunctions.org/view/en/Z17808 | Z17808 ]].
[x] Define the type
[] Define and implement equality function
[] Define and implement converters to Python and JavaScript
[] Define and implement converters from Python and JavaScript
The validator, renderer, and parser functions are out of scope for this ticket.
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## Completion checklist
* [ ] Before closing this task, review one by one the checklist available here: https://www.mediawiki.org/wiki/Abstract_Wikipedia_team/Definition_of_Done#Front-end_Task/Bug_Completion_Checklist