`dpath.search` with `afilter` Does Not Function as Expected

[DevGuyRash]

The afilter does not seem to work as described. Even using the example from the documentation does not work:

test.py

import dpath
import json

x = {
 "a": {
 "b": {
 "3": 2,
 "43": 30,
 "c": "Waffles",
 "d": "Waffles",
 "e": {
 "f": {
 "g": "Roffle"
 }
 }
 }
 }
}


def afilter(x):
 if "ffle" in str(x):
 return True
 return False


result = dpath.search(x, '**', afilter=afilter)
print(json.dumps(result, indent=4, sort_keys=True))

Output

{
 "a": {
 "b": {
 "3": 2,
 "43": 30,
 "c": "Waffles",
 "d": "Waffles",
 "e": {
 "f": {
 "g": "Roffle"
 }
 }
 }
 }
}

It seems to be outputting ALL keys.