code: def create(
      padding: Paddings,
      kernel: Union[int, Sequence[int]],
      rate: Union[int, Sequence[int]],
      n: int,
      channel_index: int,
  ):
      """Generates the padding required for a given padding algorithm.
  
      Args:
        padding: callable or list of callables of length n. The callables take an
          integer representing the effective kernel size (kernel size when the rate
          is 1) and return a list of two integers representing the padding before
          and padding after for that dimension.
        kernel: int or list of ints of length n. The size of the kernel for each
          dimension. If it is an int it will be replicated for the non channel and
          batch dimensions.
        rate: int or list of ints of length n. The dilation rate for each dimension.
          If it is an int it will be replicated for the non channel and batch
          dimensions.
        n: the number of spatial dimensions.
        channel_index: the channel position of the input to which the padding will
          be applied.
  
      Returns:
        A list of length n+2 containing the padding for each element. These are of
        the form [pad_before, pad_after].
      """
      # The effective kernel size includes any holes/gaps introduced by the
      # dilation rate. It's equal to kernel_size when rate == 1.
      effective_kernel_size = map(
          lambda kernel, rate: (kernel - 1) * rate + 1,
          utils.replicate(kernel, n, "kernel"),
          utils.replicate(rate, n, "rate"),
      )
      paddings = map(
          lambda x, y: x(y),
          utils.replicate(padding, n, "padding"),
          effective_kernel_size,
      )
      if channel_index == 1:  # N, C, ...
          paddings = [[0, 0], [0, 0]] + list(paddings)
      else:  # channel_index == -1 N, ..., C
          paddings = [[0, 0]] + list(paddings) + [[0, 0]]
  
      return paddings
  
imports: from typing import Callable, Sequence, Union
  from sonnet.src import utils
label_desc: Use image node_id 6 for calling a global function with example usage: create(padding, kernel, rate, n, channel_index) and returns: paddings