code: def _upsample(self, x, scale=1):
      return F.upsample(x, scale_factor=scale, mode="bilinear")
  
file_path: PaddleOCR/ppocr/modeling/necks/fpn.py
imports: import paddle.nn
  import paddle
  import math
  import paddle.nn.functional
label_desc: Use image node_id 2 for calling the FPN obj's underlying member method code with example usage: obj._upsample(x, scale) and returns: F