Module type_mapping 

Type mapping system for validating DataFrame structure

This module provides type mappings that define the expected structure of DataFrames loaded for specific types. Type mappings enable:

• Compile-time validation of data structure
• Custom column name mappings
• Extensibility for user-defined types

NOTE: No built-in types are registered. Domain-specific types should be defined in stdlib and registered at application startup.

Structs

TypeMapping

Maps DataFrame columns to a user-defined type

TypeMappingRegistry

Registry of type mappings