| DRAFT DICTIONARY CBF/imgCIF Extensions Dictionary | Draft version 1.5 for comment | 
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Definition:
       The value of _array_structure.id must uniquely identify
              each item of array data.
              This item has been made implicit and given a default value of 1
              as a convenience in writing miniCBF files.  Normally an
              explicit name with useful content should be used.
Type: code
Mandatory item: implicit
_array_data.array_idCategory: array_structure
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