code: def forward(self, x, targets=None):
      f_det = self.det_conv1(x)
      f_det = self.det_conv2(f_det)
      f_score = self.score_conv(f_det)
      f_score = F.sigmoid(f_score)
      f_geo = self.geo_conv(f_det)
      f_geo = (F.sigmoid(f_geo) - 0.5) * 2 * 800
  
      pred = {"f_score": f_score, "f_geo": f_geo}
      return pred
  
file_path: PaddleOCR/ppocr/modeling/heads/det_east_head.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import math
  import paddle
  from paddle import nn
  import paddle.nn.functional
  from paddle import ParamAttr
label_desc: Use image node_id 2 for calling the EASTHead obj's underlying member method code with example usage: obj.forward(x, targets) and returns: pred