RosettaCodeData/Task/Add-a-variable-to-a-class-instance-at-runtime/Julia/add-a-variable-to-a-class-instance-at-runtime-1.jl

{"phoneNumbers": [
    {
      "type": "home",
      "number": "212 555-1234"
    },
    {
      "type": "office",
      "number": "646 555-4567"
    },
    {
      "type": "mobile",
      "number": "123 456-7890"
    }]}