code: def spec5(j, k):
      if j <= k:
          return 10**-5 + (1 - 10**-5) * (k - j) / (k - 1)
      else:
          return 10**-5 * math.sqrt((k + 1) / j)
  
imports: import math
  import pytest
  import numpy
  import hail
  from hail.methods.pca import _make_tsm
  from ..helpers import resource, fails_local_backend, skip_when_service_backend, test_timeout
label_desc: Use image node_id 12 for calling a global function with example usage: spec5(j, k) and returns: unknown, unknown