You can find the codes, in c++, for the simple two-electron case at the Github repository https://github.com/mhjensenseminars/MachineLearningTalk/tree/master/doc/Programs/MLcpp/src or in python at http://compphysics.github.io/ComputationalPhysics2/doc/LectureNotes/_build/html/boltzmannmachines.html
The trial wave function are based on the product of a Slater determinant with either only Hermitian polynomials or Gaussian orbitals, with and without a Pade-Jastrow factor (PJ).