code: def __init__(
      self, start_dim: Optional[int] = 1, end_dim: Optional[int] = -1
  ):
      super(Flatten, self).__init__(
          start_dim=start_dim, end_dim=end_dim
      )
  
imports: from typing import Optional
  from torch import Tensor, nn
label_desc: Use image node_id 1 to create a new Flatten object from inherited base classes: nn with example: obj = Flatten(start_dim, end_dim)