code: def Gamma(theta: vertex_constructor_param_types, k: vertex_constructor_param_types, label: Optional[str]=None) -> Vertex:
      
      return Double(context.jvm_view().GammaVertex, label, cast_to_double_vertex(theta), cast_to_double_vertex(k))
docs: One to one constructor for mapping some shape of theta and k to matching shaped gamma.
      
      :param theta: the theta (scale) of the Gamma with either the same shape as specified for this vertex
      :param k: the k (shape) of the Gamma with either the same shape as specified for this vertex