EDocument UNECE Module
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The module adds many codes from the UNECE:
* `Recommendation N°. 20 Codes for Units of Measure Used in International
Trade
<https://tfig.unece.org/instruments/recommendations-and-standards/unece-and-uncefact-recommendations/recommendation-no-20/>`_
* `5153 Duty or tax or fee type name code
<https://unece.org/fileadmin/DAM/trade/untdid/d16b/tred/tred5153.htm>`_
* `5305 Duty or tax or fee category code
<https://unece.org/fileadmin/DAM/trade/untdid/d16b/tred/tred5305.htm>`_
Cédric Krier
40b8cf0eca