export declare const CardHeader: import("@emotion/styled").StyledComponent & import("@mui/material/OverridableComponent.js").CommonProps & Omit, HTMLDivElement>, "ref"> & { ref?: ((instance: HTMLDivElement | null) => void | import("react").DO_NOT_USE_OR_YOU_WILL_BE_FIRED_CALLBACK_REF_RETURN_VALUES[keyof import("react").DO_NOT_USE_OR_YOU_WILL_BE_FIRED_CALLBACK_REF_RETURN_VALUES]) | import("react").RefObject | null | undefined; }, "title" | "sx" | "style" | "className" | "action" | "classes" | "disableTypography" | "subheader" | "avatar" | "subheaderTypographyProps" | "titleTypographyProps"> & import("@mui/system").MUIStyledCommonProps, {}, {}>;