code: def _safe_log(x):
      return x.clamp(min=torch.finfo(x.dtype).eps).log()
  
file_path: pyro/pyro/distributions/projected_normal.py
imports: import math
  import torch
  from pyro.ops.tensor_utils import safe_normalize
  from .None import constraints
  from .torch_distribution import TorchDistribution
label_desc: Use image node_id 2 for calling a global function with example usage: _safe_log(x) and returns: x