How to use the app-builder-lib.Platform.MAC function in app-builder-lib

function commonArch(currentIfNotSpecified: boolean): Array {
      if (platform === Platform.MAC) {
        return args.x64 || currentIfNotSpecified ? [Arch.x64] : []
      }

      const result = Array()
      if (args.x64) {
        result.push(Arch.x64)
      }
      if (args.armv7l) {
        result.push(Arch.armv7l)
      }
      if (args.arm64) {
        result.push(Arch.arm64)
      }
      if (args.ia32) {
        result.push(Arch.ia32)
      }

for (const type of types) {
      const suffixPos = type.lastIndexOf(":")
      if (suffixPos > 0) {
        addValue(archToType, archFromString(type.substring(suffixPos + 1)), type.substring(0, suffixPos))
      }
      else {
        for (const arch of commonArch(true)) {
          addValue(archToType, arch, type)
        }
      }
    }
  }

  if (args.mac != null) {
    processTargets(Platform.MAC, args.mac)
  }

  if (args.linux != null) {
    processTargets(Platform.LINUX, args.linux)
  }

  if (args.win != null) {
    processTargets(Platform.WINDOWS, args.win)
  }

  if (targets.size === 0) {
    processTargets(Platform.current(), [])
  }

  const result: any = {...args}
  result.targets = targets

export function createTargets(platforms: Array, type?: string | null, arch?: string | null): Map>> {
  const targets = new Map>>()
  for (const platform of platforms) {
    const archs = platform === Platform.MAC ? [Arch.x64] : (arch === "all" ? [Arch.x64, Arch.ia32] : [archFromString(arch == null ? process.arch : arch)])
    const archToType = new Map>()
    targets.set(platform, archToType)

    for (const arch of archs) {
      archToType.set(arch, type == null ? [] : [type])
    }
  }
  return targets
}