Entity model to store on-call rotations for a team

{

"team": "string",
"schedule": [
  {
    "oncall": "string",
    "overrideoncall": "string",
    "policyType": "string",
    "rotationName": "string",
    "shiftName": "string",
    "shiftRoll": 0,
    "rolls": [
      {
        "change": 0,
        "until": 0,
        "oncall": "string",
        "isRoll": true
      }
    ]
  }
],
"overrides": [
  {
    "orig": "string",
    "over": "string",
    "start": 0,
    "end": 0
  }
]

}