Called by:

• Mix.Tasks.Mobilizon.WebPush.Gen.Keypair.run (L23)
• Mix.Tasks.Mobilizon.WebPush.Gen.Keypair.run (L24)
• Mix.Tasks.Mobilizon.WebPush.Gen.Keypair.run (L30)
• Mix.Tasks.Mobilizon.WebPush.Gen.Keypair.run (L31)