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auto_derived!(
    /// File
    pub struct File {
        /// Unique Id
        #[cfg_attr(feature = "serde", serde(rename = "_id"))]
        pub id: String,
        /// Tag / bucket this file was uploaded to
        pub tag: String,
        /// Original filename
        pub filename: String,
        /// Parsed metadata of this file
        pub metadata: Metadata,
        /// Raw content type of this file
        pub content_type: String,
        /// Size of this file (in bytes)
        pub size: isize,

        /// Whether this file was deleted
        #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
        pub deleted: Option<bool>,
        /// Whether this file was reported
        #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
        pub reported: Option<bool>,

        // TODO: migrate this mess to having:
        // - author_id
        // - parent: Parent { Message(id), User(id), etc }
        #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
        pub message_id: Option<String>,
        #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
        pub user_id: Option<String>,
        #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
        pub server_id: Option<String>,

        /// Id of the object this file is associated with
        #[cfg_attr(feature = "serde", serde(skip_serializing_if = "Option::is_none"))]
        pub object_id: Option<String>,
    }

    /// Metadata associated with a file
    #[cfg_attr(feature = "serde", serde(tag = "type"))]
    #[derive(Default)]
    pub enum Metadata {
        /// File is just a generic uncategorised file
        #[default]
        File,
        /// File contains textual data and should be displayed as such
        Text,
        /// File is an image with specific dimensions
        Image { width: usize, height: usize },
        /// File is a video with specific dimensions
        Video { width: usize, height: usize },
        /// File is audio
        Audio,
    }
);