{symbol}: Get market by symbol

curl 'https://api.poloniex.com/markets/BTC_USDT'

import requests

resp = requests.get("https://api.poloniex.com/markets/BTC_USDT")
data = resp.json()

import zingu_apis

api = zingu_apis.api("poloniex")
result = api.fetch("markets/{symbol}")

for item in result:
    print(item)

const resp = await fetch("https://api.poloniex.com/markets/BTC_USDT");
const data = await resp.json();