How to create an Enum api model in flask restx with one string field without other properties so that the following description is generated in swagger.yml?

如何在flaskRESTX中创建一个只有一个字符串字段而没有其他属性的Enum API模型，以便在swagger.yml中生成以下描述？

definitions:
    Colors:
      type: string
      enum: [black, white, red, green, blue]

Maybe some hacks will help?
Because now it seems like you can create an api model with properties only

也许黑客会有所帮助？因为现在您似乎可以创建仅具有属性的API模型

Oh, so I find solution for my question)

哦，所以我找到了我的问题的答案)

Self-answered, lol

自答式，哈哈

You can define api model via json schema description:
https://flask-restx.readthedocs.io/en/latest/marshalling.html#define-model-using-json-schema

您可以通过JSON模式描述定义接口模型：https://flask-restx.readthedocs.io/en/latest/marshalling.html#define-model-using-json-schema

colors_api_model = api.schema_model('Colors', {
    'enum':
        ['black', 'white', 'red', 'green', 'blue'],
    'type': 'string'
})

For new comers, flask restx now supports an enum property for String type

对于新来者，flaskRESTX现在支持字符串类型的枚举属性

        theme_color = api.model( "theme_color", {
            "appTheme": fields.String(description="UI primary colour",enum=["theme-red", "theme-pink", "theme-orange", "theme-yellow"])
        })

Example documentation here

此处提供了示例文档