code: def lapl2d(In, Out, niter):
      siz = In.shape[0]
      h2 = (1.0 / siz) ** 2
      for it in range(0, niter):
          Out[1 : siz - 1, 1 : siz - 1] = h2 * (
              In[0 : siz - 2, 1 : siz - 1]
              + In[1 : siz - 1, 0 : siz - 2]
              - 4.0 * In[1 : siz - 1, 1 : siz - 1]
              + In[2:siz, 1 : siz - 1]
              + In[1 : siz - 1, 2:siz]
          )
          In, Out = Out, In
  
label_desc: Use image node_id 1 for calling a global function with example usage: lapl2d(In, Out, niter) without return types