luhn-generator/update/node_modules/rxjs/_esm2015/internal/util/isInteropObservable.js

A generator of numbers that passes the validation of Luhn algorithm or Luhn formula, also known as the 'modulus 10' or 'mod 10' algorithm

import { observable as Symbol_observable } from '../symbol/observable';
export function isInteropObservable(input) {
    return input && typeof input[Symbol_observable] === 'function';
}
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