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• 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

Attributes length, and fractionDigits are optional.

"items": [    
    {
        "OID": "ITEMGROUPDATASEQ",
        "name": "ITEMGROUPDATASEQ",
        "label": "Record identifier",
        "type": "integer"
    },
    {
        "OID": "IT.DM.STUDYID",
        "name": "STUDYID",
        "label": "Study Identifier",
        "type": "string",
        "length": 12
    },
    ...
]

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