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"""
Data Access Rules module.

This module provides a new approach to data access control in Superset,
supporting:
- Table-level access control (allow/deny patterns)
- Row-level security (RLS) with predicates
- Column-level security (CLS) with masking/hiding options

Unlike the FAB-based permission system, rules are stored as JSON documents
and can reference tables directly without requiring a priori permission creation.
"""