RPC = [
    'https://data-seed-prebsc-1-s1.binance.org:8545/',
    'https://data-seed-prebsc-2-s1.binance.org:8545/',
    'https://data-seed-prebsc-1-s2.binance.org:8545/',
    'https://data-seed-prebsc-2-s2.binance.org:8545/',
    'https://data-seed-prebsc-1-s3.binance.org:8545/',
    'https://data-seed-prebsc-2-s3.binance.org:8545/',
]