"""
Constrained Discrete Diffusion (CDD)
=====================================

Implementation of "Constrained Language Generation with Discrete Diffusion Models"
(Cardei et al., 2025 — arXiv:2503.09790v3)

CDD integrates discrete diffusion models with differentiable optimization
to enforce constraints on text generation without retraining.

Modules:
    - samplers: Core CDD sampling with Augmented Lagrangian projection
    - constraints: Constraint functions (toxicity, molecular SA, novelty, instruction)
    - models: Wrappers for MDLM/UDLM discrete diffusion backbones
    - experiments: Reproduction scripts for all paper experiments
    - utils: Noise schedules, evaluation metrics, helpers
"""

__version__ = "1.0.0"