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from __future__ import annotations
import re
import queue
import threading
import logging
import asyncio
from typing import AsyncIterator, Iterator, AsyncGenerator
def filter_json(text: str) -> str:
"""
Parses JSON code block from a string.
Args:
text (str): A string containing a JSON code block.
Returns:
dict: A dictionary parsed from the JSON code block.
"""
match = re.search(r"```(json|)\n(?P<code>[\S\s]+?)\n```", text)
if match:
return match.group("code")
return text
def find_stop(stop, content: str, chunk: str = None):
first = -1
word = None
if stop is not None:
for word in list(stop):
first = content.find(word)
if first != -1:
content = content[:first]
break
if chunk is not None and first != -1:
first = chunk.find(word)
if first != -1:
chunk = chunk[:first]
else:
first = 0
return first, content, chunk
def filter_none(**kwargs) -> dict:
return {
key: value
for key, value in kwargs.items()
if value is not None
}
async def safe_aclose(generator: AsyncGenerator) -> None:
try:
await generator.aclose()
except Exception as e:
logging.warning(f"Error while closing generator: {e}")
# Helper function to convert an async generator to a synchronous iterator
def to_sync_iter(async_gen: AsyncIterator) -> Iterator:
q = queue.Queue()
loop = asyncio.new_event_loop()
done = object()
def _run():
asyncio.set_event_loop(loop)
async def iterate():
try:
async for item in async_gen:
q.put(item)
finally:
q.put(done)
loop.run_until_complete(iterate())
loop.close()
threading.Thread(target=_run).start()
while True:
item = q.get()
if item is done:
break
yield item
# Helper function to convert a synchronous iterator to an async iterator
async def to_async_iterator(iterator: Iterator) -> AsyncIterator:
for item in iterator:
yield item
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