import type { IfcEntity } from '@ifc-lite/data';
import type { EntityByIdIndex } from './columnar-parser-indexes.js';
interface EntityLookup {
    byId: EntityByIdIndex;
    byType: Map<string, number[]> | {
        get(key: string): number[] | undefined;
    };
}
export declare class BufferEntitySource {
    private extractor;
    private index;
    constructor(source: Uint8Array, index: EntityLookup);
    getEntity(expressId: number): IfcEntity | null;
    getEntitiesByType(typeName: string): IfcEntity[];
}
export {};
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