code: def _get_encoder_mask_feature(self, in_feat, memory, spatial_shapes):
      memory_feat0 = memory.split(
          spatial_shapes.prod(1).split(self.num_levels), axis=1
      )[0]
      h, w = spatial_shapes[0]
      memory_feat0 = memory_feat0.reshape(
          [0, h, w, self.hidden_dim]
      ).transpose([0, 3, 1, 2])
      out = self.enc_mask_lateral(in_feat) + F.interpolate(
          memory_feat0,
          scale_factor=2.0,
          mode="bilinear",
          align_corners=False,
      )
      return self.enc_mask_output(out)
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import math
  import paddle
  import paddle.nn
  import paddle.nn.functional
  from paddle import ParamAttr
  from paddle.regularizer import L2Decay
  from ppdet.core.workspace import register
  from .position_encoding import PositionEmbedding
  from ..heads.detr_head import MLP
  from .deformable_transformer import DeformableTransformerEncoderLayer, DeformableTransformerEncoder
  from .dino_transformer import DINOTransformerDecoderLayer
  from ..initializer import linear_init_, constant_, xavier_uniform_, bias_init_with_prob
  from .utils import _get_clones, get_valid_ratio, get_denoising_training_group, get_sine_pos_embed, inverse_sigmoid, mask_to_box_coordinate
label_desc: Use image node_id 7 for calling the MaskDINO obj's underlying member method code with example usage: obj._get_encoder_mask_feature(in_feat, memory, spatial_shapes) and returns: self