Sami Islam

**Describe the bug** On line 935 https://github.com/py-why/dowhy/blob/e79d01280b1f8c7e54c0bda93ceddc932f7eedea/dowhy/gcm/falsify.py#L935 the method falsify_graph uses np.math which does not work. **Steps to reproduce the behavior** 1. Use falsify_graph in some code with valid parameters...