code: def forward(self, x):
      B, C, N = x.shape
      x = x + F.interpolate(
          self.pos_embed,
          size=[N],
          mode="linear",
          align_corners=False,
          data_format="NCW",
      )
      return x
  
imports: import paddle
  import paddle.nn
  import paddle.nn.functional
  from paddleseg.cvlibs import manager, param_init
  from paddleseg.models import layers
  from paddleseg.models.backbones.transformer_utils import DropPath, zeros_, ones_
  from paddleseg.utils import utils
label_desc: Use image node_id 2 for calling the SqueezeAxialPositionalEmbedding obj's underlying member method code with example usage: obj.forward(x) and returns: x