code: def fib(n):
      assert n >= 0
      if n <= 1:
          return n
      else:
          return fib(n - 1) + fib(n - 2)
  
imports: import dill
  from functools import partial
  import warnings
label_desc: Use image node_id 9 for calling a global function with example usage: fib(n) and returns: n, unknown