interface SimpleType {
  readonly array?: ArrayType
  readonly boolean?: BooleanType
  readonly integer?: IntegerType
  readonly null?: NullType
  readonly number?: NumberType
  readonly object?: ObjectType
  readonly string?: StringType
}

interface ArrayType {
    readonly additionalItems?: SchemaObject
    readonly items?: SchemaObject|ReadonlyArray<SchemaObject>
    readonly maxItems?: number
    readonly minItems: number
    readonly uniqueItems: boolean // default is false
}

interface BooleanType {
}

interface IntegerType extends NumberType {
}

interface NullType {
}

interface NumberType {
    readonly multipleOf?: number
    readonly maximum?: number
    readonly exclusiveMaximum?: number
    readonly minimum?: number
    readonly exclusiveMinimum?: number
}

interface ObjectType {
    readonly maxProperties?: number
    readonly minProperties: number // default is 0
    readonly required: ReadonlyArray<string> // default is []
    readonly additionalProperties?: SchemaObject
    readonly properties: StringMap<SchemaObject> // default is {}
    readonly patternProperties?: {} // ...
    readonly dependencies?: {} // ...
    readonly propertyNames?: {} // ...
}

interface StringType {
    readonly maxLength?: number
    readonly minLength: number // default is 0
    readonly patter?: string
    readonly format?: string
    readonly contentMediaType?: string
    readonly contentEncodinf?: string
}