callbag-throw-error Callbag source factory that immediately emits an error. Example import concat from 'callbag-concat'import of from 'callbag-of'import pipe from 'callbag-pipe'import subscribe from 'callbag-subscribe'import throwError from 'callbag-throw-error' pipe( concat(of(1, 2, 3), throwError('err')) subscribe({ next: value => { console.log(value) // 1 2 3 }, error: err => { console.log(err) // 'err' }, }),)