@polkadot/api/base/find.js

import { u8aToU8a } from '@polkadot/util';
export function findCall(registry, callIndex) {
    return registry.findMetaCall(u8aToU8a(callIndex));
}
export function findError(registry, errorIndex) {
    return registry.findMetaError(u8aToU8a(errorIndex));
}