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This Structured DataType is used to provide the metadata for a custom Enumeration or OptionSet DataType. It is derived from the DataType DataTypeDefinition. The EnumDefinition is formally defined in Table 35.

Table 35 – EnumDefinition Structure

Name	Type	Description
EnumDefinition	Structure
fields	EnumField []	The list of fields that make up the data type. The EnumField DataType is defined in 8.52.