text: const process = require('process')
  const readline = require('readline')
  
  const makeLineIterator = (input) => {
      if ([true, false, '-'].includes(input) || !input) {
          const rl = readline.createInterface({
              input: process.stdin
          })
  
          return async function*() {
              for await (let line of rl) {
                  yield line
              }
          }
      }
      else {
          return function*() {
              if (Array.isArray(input)) {
                  yield* input
              }
              else {
                  yield input
              }
          }
      }
  }
  
  module.exports = { makeLineIterator }
  