class_docstr: Q-function with discrete actions.
  
  Args:
      model (nn.Module):
          Module that is callable and outputs action values.
code: def __init__(self, model):
      super().__init__(model=model)
  
imports: import torch
  import torch.nn
  import torch.nn.functional
  from pfrl.initializers import init_lecun_normal
  from pfrl.nn.mlp import MLP
  from pfrl.nn.mlp_bn import MLPBN
  from pfrl.q_function import StateActionQFunction
label_desc: Use image node_id 1 to create a new SingleModelStateActionQFunction object from inherited base classes: nn, StateActionQFunction with example: obj = SingleModelStateActionQFunction(model)