set isSniffing()

in src/Transport.ts [316:321]

• 6 lines of code
• 2 McCabe index (conditional complexity)

  set isSniffing (val) {
    if (typeof val !== 'boolean') {
      throw new ConfigurationError(`isSniffing must be a boolean, instead got ${typeof val}`)
    }
    this[kIsSniffing] = val
  }