Query unclaim fee from UniswapV3 pool

requirements.txt

aiohttp==3.8.3
aiosignal==1.3.1
async-timeout==4.0.2
attrs==22.2.0
base58==2.1.1
bitarray==2.6.2
certifi==2022.12.7
charset-normalizer==2.1.1
cytoolz==0.12.1
eth-abi==2.2.0
eth-account==0.5.9
eth-hash==0.5.1
eth-keyfile==0.5.1
eth-keys==0.3.4
eth-rlp==0.2.1
eth-typing==2.3.0
eth-utils==1.9.5
frozenlist==1.3.3
hexbytes==0.3.0
idna==3.4
ipfshttpclient==0.8.0a2
jsonschema==4.17.3
lru-dict==1.1.8
multiaddr==0.0.9
multidict==6.0.4
netaddr==0.8.0
parsimonious==0.8.1
protobuf==3.19.5
pycryptodome==3.16.0
pyrsistent==0.19.3
requests==2.28.1
rlp==2.0.1
six==1.16.0
toolz==0.12.0
urllib3==1.26.13
varint==1.0.2
web3==5.31.3
websockets==9.1
yarl==1.8.2

uni_pool_fee.py

from web3 import Web3
from web3.middleware import geth_poa_middleware
from pprint import pprint as pp

# update: your pool
rpc_url = "https://endpoints.omniatech.io/v1/bsc/mainnet/public" # BSC
from_addr = "0xb6621cbF70E95d6C90BE651C719534d08e7E42ca"
pool_addr = "0x7b8A01B39D58278b5DE7e48c8449c9f4F5170613"
pool_id = 10000

# init w3
w3 = Web3(Web3.HTTPProvider(rpc_url))
w3.middleware_onion.inject(geth_poa_middleware, layer=0)

# init pool contract
c = w3.eth.contract(
    abi=[{"inputs":[{"components":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint128","name":"amount0Max","type":"uint128"},{"internalType":"uint128","name":"amount1Max","type":"uint128"}],"internalType":"struct INonfungiblePositionManager.CollectParams","name":"params","type":"tuple"}],"name":"collect","outputs":[{"internalType":"uint256","name":"amount0","type":"uint256"},{"internalType":"uint256","name":"amount1","type":"uint256"}],"stateMutability":"payable","type":"function"}],
    address=pool_addr
)

amt_max = 340282366920938463463374607431768211455 # (2^128)-1
payload = (
    pool_id,    # tokenId
    from_addr,  # recipient
    amt_max,    # amount0Max
    amt_max,    # amount1Max
)
[fee0, fee1] = c.functions.collect(payload).call()

pp(fee0/1_000_000_000_000_000_000) #18
pp(fee1/1_000_000_000_000_000_000) #18