export declare const DATA_PROGRAM_SENTINEL = "__DATA_PROGRAM_RESULT__";
export type DataProgramColumnType = "number" | "string" | "boolean" | "json";
export interface DataProgramColumn {
    name: string;
    type: string;
}
export type DataProgramContractErrorCode = "emit_missing" | "emit_shape_invalid" | "result_too_large";
export interface DataProgramContractError {
    code: DataProgramContractErrorCode;
    message: string;
}
export interface ParsedDataProgramResult {
    rows: Record<string, unknown>[];
    schema: DataProgramColumn[];
    truncated: boolean;
}
export declare function buildDataProgramPrelude(params: Record<string, unknown> | undefined): string;
export declare function inferDataProgramSchema(rows: Record<string, unknown>[], sampleSize?: number): DataProgramColumn[];
export interface ParseDataProgramResultOptions {
    maxRows: number;
    maxBytes: number;
}
export type ParseDataProgramResultOutcome = {
    ok: true;
    result: ParsedDataProgramResult;
} | {
    ok: false;
    error: DataProgramContractError;
};
export declare function parseDataProgramResult(stdout: string, options: ParseDataProgramResultOptions): ParseDataProgramResultOutcome;