class_docstr: Gaussian Conditional prior with mean and scale indexes
code: def _standardized_quantile(quantile):
      return sps.norm.ppf(quantile)
  
imports: import math
  from typing import Any, List, Optional, Tuple
  import scipy.stats
  import torch
  import torch.nn
  from compressai.entropy_models import EntropyModel
  from compressai.ops import LowerBound
  from torch import Tensor
label_desc: Use image node_id 5 for calling the ContinuousIndexedGaussianConditional obj's underlying member method code with example usage: obj._standardized_quantile(quantile) and returns: sps