/**
 * BTS SDK — typed API client for Bureau of Transportation Statistics data.
 *
 * Standalone — no MCP server required. Usage:
 *
 *   import { getTransportStats, getBorderCrossings } from "us-gov-open-data-mcp/sdk/bts";
 *
 *   const stats = await getTransportStats({ limit: 12 });
 *   const border = await getBorderCrossings({ state: "Texas", measure: "Trucks" });
 *
 * No API key required (uses Socrata SODA API at data.bts.gov).
 * Docs: https://data.bts.gov/
 */
/** Transport Stats Record. */
export interface TransportStatsRecord {
    index?: string;
    date?: string;
    u_s_airline_traffic_total_non_seasonally_adjusted?: string;
    u_s_airline_traffic_domestic_non_seasonally_adjusted?: string;
    u_s_airline_traffic_international_non_seasonally_adjusted?: string;
    u_s_marketing_air_carriers_on_time_performance_percent?: string;
    u_s_air_carrier_cargo_millions_of_revenue_ton_miles_domestic?: string;
    u_s_air_carrier_cargo_millions_of_revenue_ton_miles_international?: string;
    system_use_transit_ridership?: string;
    system_use_highway_vehicle?: string;
    system_use_freight_rail?: string;
    passenger_rail_passengers?: string;
    passenger_rail_passenger_miles?: string;
    amtrak_on_time_performance?: string;
    safety_general_aviation?: string;
    air_safety_air_carrier_fatalities?: string;
    rail_fatalities?: string;
    transportation_services_index_freight?: string;
    transportation_services_index_passenger?: string;
    transportation_services_index_combined?: string;
    u_s_canada_incoming_person_crossings?: string;
    u_s_canada_incoming_truck_crossings?: string;
    u_s_mexico_incoming_person_crossings?: string;
    u_s_mexico_incoming_truck_crossings?: string;
    auto_sales?: string;
    auto_sales_saar_millions?: string;
    light_truck_sales?: string;
    heavy_truck_sales?: string;
    highway_fuel_prices_regular?: string;
    truck_tonnage_index?: string;
    u_s_waterway_tonnage?: string;
    general_economic_indicators?: string;
    transportation_economic?: string;
    [key: string]: unknown;
}
/** Border Crossing Record. */
export interface BorderCrossingRecord {
    port_name?: string;
    state?: string;
    port_code?: string;
    border?: string;
    date?: string;
    measure?: string;
    value?: string;
    latitude?: string;
    longitude?: string;
    [key: string]: unknown;
}
/** Key fields in the Monthly Transportation Statistics dataset. */
export declare const TRANSPORT_FIELDS: {
    readonly u_s_airline_traffic_total_non_seasonally_adjusted: "U.S. airline passenger traffic (total, not SA)";
    readonly u_s_marketing_air_carriers_on_time_performance_percent: "Airline on-time performance (%)";
    readonly system_use_transit_ridership: "Transit ridership";
    readonly transportation_services_index_freight: "Transportation Services Index — Freight";
    readonly transportation_services_index_passenger: "Transportation Services Index — Passenger";
    readonly transportation_services_index_combined: "Transportation Services Index — Combined";
    readonly truck_tonnage_index: "Truck Tonnage Index";
    readonly amtrak_on_time_performance: "Amtrak on-time performance";
    readonly highway_fuel_prices_regular: "Regular gasoline price ($/gallon)";
    readonly auto_sales_saar_millions: "Auto sales (SAAR, millions)";
    readonly rail_fatalities: "Rail fatalities";
    readonly air_safety_air_carrier_fatalities: "Air carrier fatalities";
};
/** Border crossing measures. */
export declare const BORDER_MEASURES: {
    readonly Trucks: "Commercial trucks";
    readonly "Personal Vehicles": "Personal vehicles (cars)";
    readonly Pedestrians: "Foot traffic";
    readonly "Train Passengers": "Rail passengers";
    readonly "Rail Containers Loaded": "Rail freight containers (loaded)";
    readonly "Rail Containers Empty": "Rail freight containers (empty)";
    readonly Buses: "Bus crossings";
};
/** Socrata dataset IDs. */
export declare const DATASETS: {
    readonly monthly_stats: {
        readonly id: "crem-w557";
        readonly description: "Monthly Transportation Statistics: 50+ indicators on airlines, transit, rail, safety, fuel, vehicle sales";
    };
    readonly border_crossings: {
        readonly id: "keg4-3bc2";
        readonly description: "Border crossing data: vehicles, passengers, containers at U.S. ports of entry (monthly)";
    };
};
/**
 * Get Monthly Transportation Statistics (50+ time series in one dataset).
 * Covers airline traffic, on-time %, transit ridership, rail freight, truck tonnage,
 * fuel prices, vehicle sales, safety fatalities, Transportation Services Index,
 * and border crossing summaries.
 *
 * Example:
 *   const data = await getTransportStats({ limit: 24 }); // latest 2 years (monthly)
 *   const data = await getTransportStats({ startDate: "2020-01-01", endDate: "2023-12-31" });
 */
export declare function getTransportStats(opts?: {
    startDate?: string;
    endDate?: string;
    limit?: number;
    offset?: number;
    order?: string;
    where?: string;
}): Promise<TransportStatsRecord[]>;
/**
 * Get border crossing data (vehicles, passengers, containers at U.S. ports of entry).
 *
 * Example:
 *   const data = await getBorderCrossings({ state: "Texas", measure: "Trucks" });
 *   const data = await getBorderCrossings({ border: "US-Mexico Border" });
 */
export declare function getBorderCrossings(opts?: {
    state?: string;
    border?: string;
    portName?: string;
    measure?: string;
    limit?: number;
    offset?: number;
    order?: string;
    where?: string;
}): Promise<BorderCrossingRecord[]>;
/** Clear cached responses. */
export declare function clearCache(): void;
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