code: def scalar_close(a, b):
      return abs(a - b) < TOL or abs(a - b) / abs(a + b) < RTOL
  
file_path: autograd/autograd/test_util.py
imports: from functools import partial
  from itertools import product
  from .core import make_vjp, make_jvp, vspace
  from .util import subvals
  from .wrap_util import unary_to_nary, get_name
label_desc: Use image node_id 1 for calling a global function with example usage: scalar_close(a, b) and returns: unknown