how can I generate a password in hashlib

[go127a]

its 'sha256'
as I found out from web, I should encode the value in the dictionary
I have tried

hashlib.sha256("a".encode('utf-8')).hexdigest()

and I reach

<sha256 HASH object @ 0x00000246AA5E1DC8>

from this point I can not go further. I dont know what to do.

as I know from the question I should use a loop from 1000 to 9999 and decode the value of the dictionary.

---

they used this process to generate that hash. and now I should do it in reverse process.

#for  peter,5104
import hashlib

def encrypt_string(hash_string):
    sha_signature = \
        hashlib.sha256(hash_string.encode()).hexdigest()
    return sha_signature
hash_string = '5104'
sha_signature = encrypt_string(hash_string)
print(sha_signature)

the output is:

99b057c8e3461b97f8d6c461338cf664bc84706b9cc2812daaebf210ea1b9974