code: def make_rectangular_kernel(kernel_size: int) -> torch.Tensor:
      return torch.ones(kernel_size)
  
imports: from __future__ import annotations
  import torch
  from torch.nn import functional
  from torch.nn.modules.loss import _Loss
  from monai.networks.layers import gaussian_1d, separable_filtering
  from monai.utils import LossReduction
  from monai.utils.module import look_up_option
label_desc: Use image node_id 1 for calling a global function with example usage: make_rectangular_kernel(kernel_size) and returns: torch