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from __future__ import annotations
import random
import secrets
import string
from aiohttp import BaseConnector
from ..typing import Messages, Optional
from ..errors import MissingRequirementsError
def format_prompt(messages: Messages, add_special_tokens=False) -> str:
"""
Format a series of messages into a single string, optionally adding special tokens.
Args:
messages (Messages): A list of message dictionaries, each containing 'role' and 'content'.
add_special_tokens (bool): Whether to add special formatting tokens.
Returns:
str: A formatted string containing all messages.
"""
if not add_special_tokens and len(messages) <= 1:
return messages[0]["content"]
formatted = "\n".join([
f'{message["role"].capitalize()}: {message["content"]}'
for message in messages
])
return f"{formatted}\nAssistant:"
def get_random_string(length: int = 10) -> str:
"""
Generate a random string of specified length, containing lowercase letters and digits.
Args:
length (int, optional): Length of the random string to generate. Defaults to 10.
Returns:
str: A random string of the specified length.
"""
return ''.join(
random.choice(string.ascii_lowercase + string.digits)
for _ in range(length)
)
def get_random_hex() -> str:
"""
Generate a random hexadecimal string of a fixed length.
Returns:
str: A random hexadecimal string of 32 characters (16 bytes).
"""
return secrets.token_hex(16).zfill(32)
def get_connector(connector: BaseConnector = None, proxy: str = None) -> Optional[BaseConnector]:
if proxy and not connector:
try:
from aiohttp_socks import ProxyConnector
connector = ProxyConnector.from_url(proxy)
except ImportError:
raise MissingRequirementsError('Install "aiohttp_socks" package for proxy support')
return connector
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