This package contains a planar arm model with Python interface. This model is published in International IEEE/EMBS Conference on Neural Engineering (NER), 2023. N. Wannawas et A. A. Faisal, Towards AI-controlled FES-restoration of arm movements: neuromechanics-based reinforcement learning for 3-D reaching, NER, 2023. preprint: https://arxiv.org/abs/2301.04004