我想在空手道DSL中尝试JSON模式验证中的一个条件

{
  "type": "object",
  "properties": {
    "name": {
      "type": "string"
    },
    "age": {
      "type": "integer",
      "minimum": 18,
      "maximum": 60
    },
    "gender": {
      "type": "string",
      "enum": ["male", "female"]
    }
  },
  "if": {
    "properties": {
      "gender": { "const": "male" }
    }
  },
  "then": {
    "properties": {
      "militaryService": { "type": "boolean" }
    },
    "required": ["militaryService"]
  },
  "else": {
    "properties": {
      "pregnant": { "type": "boolean" }
    },
    "required": ["pregnant"]
  }
}