`multiplier_decimal` should be string

[jjkoh95]

Steps to reproduce

Running example listed here:

from binance_common.configuration import ConfigurationRestAPI
from binance_common.constants import DERIVATIVES_TRADING_COIN_FUTURES_REST_API_PROD_URL
from binance_sdk_derivatives_trading_coin_futures.derivatives_trading_coin_futures import DerivativesTradingCoinFutures
from binance_sdk_derivatives_trading_coin_futures.rest_api.models import ExchangeInformationResponse

logging.basicConfig(level=logging.INFO)
configuration = ConfigurationRestAPI(api_key="your-api-key", api_secret="your-api-secret", base_path=DERIVATIVES_TRADING_COIN_FUTURES_REST_API_PROD_URL)

client = DerivativesTradingCoinFutures(config_rest_api=configuration)

try:
    response = client.rest_api.exchange_information()

    data: ExchangeInformationResponse = response.data()
    logging.info(f"exchange_information() response: {data}")
except Exception as e:
    logging.error(f"exchange_information() error: {e}")

Error

I ran into error:

ERROR:root:exchange_information() error: 59 validation errors for ExchangeInformationResponse
symbols.0.filters.5.multiplierDecimal
  Input should be a valid integer [type=int_type, input_value='4', input_type=str]
    For further information visit https://errors.pydantic.dev/2.11/v/int_type

Fix

I have made temporary fix by changing the type - here and it works after that.

Tests:

# install temp fix, and run the same code
uv add "git+ssh://git@github.com/jjkoh95/binance-connector-python#subdirectory=clients/derivatives_trading_coin_futures" --branch fix-multiplier-decimal

[alplabin]

Hi @jjkoh95, Thanks for noticing this issue. It will be fixed soon.