code: def forward(self, x):
      if self.encoder_type != "svtr":
          x = self.encoder_reshape(x)
          if not self.only_reshape:
              x = self.encoder(x)
          return x
      else:
          x = self.encoder(x)
          x = self.encoder_reshape(x)
          return x
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import paddle
  from paddle import nn
  from ppocr.modeling.heads.rec_ctc_head import get_para_bias_attr
  from ppocr.modeling.backbones.rec_svtrnet import Block, ConvBNLayer, trunc_normal_, zeros_, ones_
label_desc: Use image node_id 2 for calling the SequenceEncoder obj's underlying member method code with example usage: obj.forward(x) and returns: x, x