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items is an array of basic information about dataset variables. The order of elements in the array must be the same as the order of variables in the described dataset. The first element always describes the Record Identifier (ITEMGROUPDATASEQ).
- OID - OID of a variable (must correspond to the variable OID in the Define-XML file)
- name - variable name
- label - variable description
- type - type of the variable. One of 'string', 'integer', 'decimal', 'float', 'double', 'boolean'. See ODM types for details.
- length - variable length
fractionDigits - Number of digits to the right of the decimal point when type of the variable is float
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