class_docstr: Argument transform from (-oo, oo) to (-1, 1)
class_docstr_tok: ["Argument","transform","from","(","-oo",",","oo",")","to","(","-1",",","1",")"]
code: def __init__(self, func):
      self._func = func
  
      # Overflow threshold for the 1/t**2 factor
      self._tmin = sys.float_info.min**0.5
  
imports: import sys
  import copy
  import heapq
  import collections
  import functools
  import numpy
  from scipy._lib._util import MapWrapper, _FunctionWrapper
label_desc: Use image node_id 1 to create a new DoubleInfiniteFunc object  with example: obj = DoubleInfiniteFunc(func)