docstr: Get configurations for deconv layers.
docstr_tok: ["Get","configurations","for","deconv","layers","."]
code: def _get_deconv_cfg(deconv_kernel):
      """Get configurations for deconv layers."""
      if deconv_kernel == 4:
          padding = 1
          output_padding = 0
      elif deconv_kernel == 3:
          padding = 1
          output_padding = 1
      elif deconv_kernel == 2:
          padding = 0
          output_padding = 0
      else:
          raise ValueError(
              f"Not supported num_kernels ({deconv_kernel})."
          )
  
      return deconv_kernel, padding, output_padding
  
file_path: PaddleDetection/ppdet/modeling/heads/vitpose_head.py
imports: import paddle
  import paddle.nn
  import paddle.nn.functional
  from ppdet.core.workspace import register
  from ppdet.modeling.keypoint_utils import resize, flip_back
  from paddle.nn.initializer import TruncatedNormal, Constant, Normal
  from ppdet.modeling.layers import ConvTranspose2d, BatchNorm2d
label_desc: Use image node_id 2 for calling the TopdownHeatmapSimpleHead obj's underlying member method code with example usage: obj._get_deconv_cfg(deconv_kernel) and returns: deconv_kernel,  padding,  output_padding