属性签名 ThumbnailObject.type
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最后更新时间 (UTC):2024-10-15。
[null,null,["最后更新时间 (UTC):2024-10-15。"],[[["Signature is a required string type."],["It is not optional and its value can be modified."]]],["The core content describes a \"Signature\" field. This field is a string data type and is mandatory, meaning it cannot be left empty. Furthermore, the field is not read-only, indicating that it is modifiable and can be updated. In essence, a user must provide a string value in this \"Signature\" field, and this value is editable.\n"]]