connect don't support ed25519?

[Forward0908]

API_KEY='./ssh_key/api_key.txt'
PRIVATE_KEY_PATH='./ssh_key/Private_key.txt'

with open(API_KEY, 'rb') as f:
api_key = f.read()

with open(PRIVATE_KEY_PATH, 'rb') as f:
private_key = f.read()

client = UMFutures(key=api_key,
secret=private_key,
base_url='https://testnet.binancefuture.com')

Error:
m = hmac.new(secret.encode("utf-8"), payload.encode("utf-8"), hashlib.sha256)
AttributeError: 'bytes' object has no attribute 'encode'. Did you mean: 'decode'?

Environment

Provide any relevant information about your setup, such as:

• Version of binance-connector-python
• Python version 3.10
• Operating system macos