Provides a class suitable to be used as a model, that includes connection management, variable interpolation, object coercion and helper methods to support using direct MySQL statements for database interaction.

A global Boolean2 constant that is an ancestor of true and false. Useful for coercion libraries.

Validrb is a powerful Ruby schema validation library inspired by Pydantic and Zod. It provides type coercion, rich constraints, schema composition, union types, discriminated unions, custom validators, JSON Schema generation, and serialization.

FlexCoerce - is a gem which allow you create operator-dependent coercion logic. It's useful when your type should be treated in a different way for different binary operations (including arithmetic operators, bitwise operators and comparison operators except equality checks: `==`, `===`).

Lazy attribute coercion

A composable type system for Ruby with runtime validation and coercion.

Emu acts as a replacement for ad-hoc type coercions and strong_parameters.

A variety of functional transforms and value object coercions for Transproc.

A small library for manipulating form-based data with validations and attributes coercion.