export declare const useStyles: (props?: {
    fontSize?: number | undefined;
    headerMultiple?: number | undefined;
    lineHeight?: number | undefined;
    marginMultiple?: number | undefined;
} | undefined) => import("antd-style").ReturnStyles<{
    chat: import("antd-style").SerializedStyles;
    root: import("antd-style").SerializedStyles;
}>;