A format for the column, used to parse a textual representation
of the values. Date formats are defined by:
http://joda-time.sourceforge.net/api-release/org/joda/time/format/DateTimeFormat.html
A group of atomic values. There must be at most one value per
locale (xml:lang attribute), and at most one value with no locale. All
values are either value elements or conceptValue elements.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-06-26 UTC."],[],["The `ValuesGroup` element defines a collection of atomic values, either as `value` or `conceptValue` elements. `conceptValue` must specify a `concept` attribute, while `value` can have a `lang` attribute. `ValuesGroup` attributes include `id` (required, up to 64 characters), `type` (required, with data type options), and `format` (optional, for parsing textual values). The `ValuesGroup` must contain one value per locale. The group is used by Table/column and complex types like Attribute and Values.\n"]]