import ts from './typescript-api.mts';
export interface VirtualProgramMatrix<Id extends string> {
    readonly program: ts.Program;
    sourceFile(id: Id): ts.SourceFile;
}
export declare function buildVirtualProgramMatrix<const Id extends string>(ownerExecution: ImportMeta, sources: Readonly<Record<Id, string>>): VirtualProgramMatrix<Id>;
export declare function virtualProgramBuildCountForTest(): number;