export function getTypeName(markLike: any): any;
export function isTrackFormatNoOp(before: any, after: any): any;
export function attrsExactlyMatch(left?: {}, right?: {}): any;
export function markSnapshotMatchesStepMark(snapshot: any, stepMark: any, exact?: boolean): any;
export function hasMatchingMark(marks: any, stepMark: any): any;
export function upsertMarkSnapshotByType(snapshots: any, incoming: any): any[];
export function findMarkInRangeBySnapshot({ doc, from, to, snapshot }: {
    doc: any;
    from: any;
    to: any;
    snapshot: any;
}): null;
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