The function takes a string as an input and returns the word form of the count of digits in the input string. If the input string does not contain any digits, it returns an empty string.

[CODE]:
```python
def count_digits(s):
    count = sum(c.isdigit() for c in s)
    word_form = {0: "", 1: "one", 2: "two", 3: "three", 4: "four", 5: "five", 6: "six", 7: "seven", 8: "eight", 9: "nine", 10: "ten"}

    return word_form.get(count, "")

input_string = "example123"
result = count_digits(input_string)
print(result)
```
Please note that this code is an approximation of the behavior described, and the actual function implemented in the script might have some differences.