# `MishkaGervaz.Table.Verifiers.ValidateColumns`
[🔗](https://github.com/mishka-group/mishka_gervaz/blob/v0.0.1-alpha.3/lib/mishka_gervaz/table/verifiers/validate_columns.ex#L1)

Validates the columns section of MishkaGervaz DSL.

Ensures that:
- At least one column exists after all transformers have run
- Custom columns (not in resource attributes) have `static: true`
- Static columns with render have `requires` defined

See `MishkaGervaz.Table.Dsl.Columns`,
`MishkaGervaz.Table.Entities.Column`,
`MishkaGervaz.Table.Verifiers.Helpers`, and sibling verifiers.

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*Consult [api-reference.md](api-reference.md) for complete listing*