Aerodatabox Delay Bracket Contract Structure

{
  "$schema": "https://json-structure.org/meta/core/v0/#",
  "$id": "https://raw.githubusercontent.com/api-evangelist/aerodatabox/refs/heads/main/json-structure/aerodatabox-delay-bracket-contract-structure.json",
  "description": "Delay bracket contract describing how many records are subject to a specific delay range",
  "type": "object",
  "properties": {
    "delayedFrom": {
      "type": "string",
      "description": "The beginning of the delay range (format: [-]hh:mm:ss).\r\nE.g. in the expresssion \"delayed from 30 to 60 minutes\" stands for \"from 30 minutes\".\r\nValue can be negative (therefore, means early occurence).\r\n\r\nMust be preset if \"DelayedTo\" is not specified.",
      "format": "date-span",
      "nullable": true
    },
    "delayedTo": {
      "type": "string",
      "description": "The end of the delay range (format: [-]hh:mm:ss).\r\nE.g. in the expresssion \"delayed from 30 to 60 minutes\" stands for \"to 60 minutes\".\r\nValue can be negative (therefore, means early occurence).\r\n\r\nMust be preset if \"DelayedFrom\" is not specified.",
      "format": "date-span",
      "nullable": true
    },
    "num": {
      "type": "int32",
      "description": "Count of records subject to a specified delay range"
    },
    "percentage": {
      "type": "float",
      "description": "Percentage of records subject to a specified delay range.\r\n\r\nOnly available when this delay bracket is provided as a part\r\nof a statistical information of a bigger context and the \"total\"\r\ncount of records is known.",
      "nullable": true
    }
  },
  "required": [
    "num"
  ],
  "additionalProperties": false,
  "name": "DelayBracketContract"
}