| 1234567 | import assertString from './util/assertString';var bech32 = /^(bc1)[a-z0-9]{25,39}$/;var base58 = /^(1|3)[A-HJ-NP-Za-km-z1-9]{25,39}$/;export default function isBtcAddress(str) {  assertString(str);  return bech32.test(str) || base58.test(str);}
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