export type FrontmatterBlock = {
    raw: string;
    body: string;
    rawStart: number;
    rawEnd: number;
};
export type SplitFrontmatterResult = FrontmatterBlock | {
    body: string;
};
export type InspectFrontmatterResult = (FrontmatterBlock & {
    kind: "frontmatter";
}) | {
    kind: "missing-closing-fence";
    raw: string;
    rawStart: number;
    rawEnd: number;
    body: "";
    message: string;
    position: number;
} | {
    kind: "body";
    body: string;
};
export declare function splitFrontmatterBlock(source: string): SplitFrontmatterResult;
export declare function inspectFrontmatterBlock(source: string): InspectFrontmatterResult;