text: Title: Weibull distribution
  Body: I got ValueError: Expected parameter scale (Tensor of shape (32, 96, 1)) of distribution Weibull(scale: torch.Size([32, 96, 1]), concentration: torch.Size([32, 96, 1])) to satisfy the constraint GreaterThan(lower_bound=0.0), but found invalid values:tensor([[[ 3.9661e-30],[ 1.2568e+01],[ 6.9787e-08]........while using Weibull likelihood parameter but the input was given while using Laplace and Gaussian Likelihood & code was run successfully.