Write a function to count the element frequency in the mixed nested tuple.
def flatten(test_tuple): 
	for tup in test_tuple: 
		if isinstance(tup, tuple): 
			yield from flatten(tup) 
		else: 
			yield tup 
def count_element_freq(test_tuple):
  res = {}
  for ele in flatten(test_tuple):
    if ele not in res:
      res[ele] = 0
    res[ele] += 1
  return (res) 