code: def forward(self, x):
      pool = paddle.nn.AvgPool2D(3, 1, 1, exclusive=False)
      res = []
      x = self.model.conv1(x)
      x = self.model.bn1(x)
      x = self.model.relu(x)
      x = self.model.maxpool(x)
      x = self.model.layer1(x)
      x = self.model.layer2(x)
      res.append(pool(x))
      x = self.model.layer3(x)
      res.append(pool(x))
      x = res
      for i in range(1, len(x)):
          x[i] = F.interpolate(
              x[i], scale_factor=2**i, mode="nearest"
          )
      # print([i.shape for i in x])
      x = paddle.concat(x, 1)
      # x = self.project(x)
      return x
  
imports: import numpy
  from tqdm import tqdm
  import paddle
  import paddle.nn
  import paddle.nn.functional
  from paddle.vision.models.resnet import resnet18, resnet50, wide_resnet50_2
  from scipy.ndimage import gaussian_filter
  from qinspector.cvlib.workspace import register
  from qinspector.uad.utils.utils import cdist, cholesky_inverse, mahalanobis, mahalanobis_einsum, orthogonal, svd_orthogonal
  from qinspector.uad.utils.k_center_greedy import KCenterGreedy
label_desc: Use image node_id 5 for calling the PatchCore obj's underlying member method code with example usage: obj.forward(x) and returns: x