code: def embedding_length(self) -> int:
      return self.__embedding_length
  
imports: import logging
  from typing import Any, Dict, List, Optional
  import torch
  import torch.nn.functional
  from torch.nn import AdaptiveAvgPool2d, AdaptiveMaxPool2d, Conv2d, Dropout2d, Linear, MaxPool2d, Parameter, ReLU, Sequential, TransformerEncoder, TransformerEncoderLayer
  import flair
  from flair.data import Image
  from flair.embeddings.base import Embeddings, register_embeddings
label_desc: Use image node_id 3 for calling the PrecomputedImageEmbeddings obj's underlying member method code with example usage: obj.embedding_length() and returns: self