code: def Inf(self, B, H, W):
      return -paddle.tile(
          paddle.diag(paddle.tile(self.inf_tensor, [H]), 0).unsqueeze(
              0
          ),
          [B * W, 1, 1],
      )
  
imports: import paddle
  import paddle.nn
  import paddle.nn.functional
  from paddleseg.cvlibs import manager
  from paddleseg.models import layers
  from paddleseg.utils import utils
label_desc: Use image node_id 3 for calling the CrissCrossAttention obj's underlying member method code with example usage: obj.Inf(B, H, W) and returns: unknown