/**
 * EIA SDK — typed API client for the U.S. Energy Information Administration API v2.
 *
 * Standalone — no MCP server required. Usage:
 *
 *   import { queryEia } from "us-gov-open-data-mcp/sdk/eia";
 *
 * Requires EIA_API_KEY env var — register at https://www.eia.gov/opendata/register.php
 */
/** Eia Response. */
export interface EiaResponse {
    response: {
        total: number;
        data: EiaObservation[];
        description?: string;
        dateFormat?: string;
        frequency?: string;
    };
    request?: Record<string, unknown>;
}
/** Eia Observation. */
export interface EiaObservation {
    period: string;
    value: number | string | null;
    units?: string;
    unit?: string;
    "series-description"?: string;
    seriesDescription?: string;
    series?: string;
    stateDescription?: string;
    stateid?: string;
    stateId?: string;
    sectorName?: string;
    sectorid?: string;
    msn?: string;
    process?: string;
    [key: string]: unknown;
}
/** Eia Route. */
export interface EiaRoute {
    path: string;
    description: string;
    frequency: string[];
    facets?: string[];
}
/** EIA State Energy Data System (SEDS) MSN codes for state energy profiles. */
export declare const sedsMsnCodes: {
    readonly TETCB: "Total energy consumption (trillion BTU)";
    readonly TETCD: "Total energy consumption per capita";
    readonly TEPRB: "Total energy production (trillion BTU)";
    readonly ESTCB: "Electricity total consumption";
    readonly CLTCB: "Coal consumption";
    readonly NNTCB: "Natural gas consumption";
    readonly PATCB: "Petroleum consumption (all products)";
    readonly RETCB: "Renewable energy consumption";
    readonly NUETB: "Nuclear energy consumption";
    readonly ELISB: "Electricity interstate flow";
    readonly TETXB: "Total energy expenditures";
};
/** Routes. */
export declare const routes: EiaRoute[];
/**
 * Query the EIA API v2.
 * Uses bracket-style params: data[0], facets[series][], sort[0][column], etc.
 * String arrays produce repeated keys automatically via createClient.
 */
export declare function queryEia(route: string, params?: Record<string, string | number | string[] | undefined>): Promise<EiaResponse>;
/** Get petroleum data (spot prices, gasoline, diesel). */
export declare function getPetroleum(opts?: {
    product?: string;
    frequency?: string;
    start?: string;
    end?: string;
    length?: number;
    offset?: number;
}): Promise<EiaResponse>;
/** Get electricity data (retail sales, prices, etc.). */
export declare function getElectricity(opts?: {
    state?: string;
    sector?: string;
    dataType?: string;
    frequency?: string;
    start?: string;
    end?: string;
    length?: number;
    offset?: number;
}): Promise<EiaResponse>;
/** Get natural gas prices. */
export declare function getNaturalGas(opts?: {
    process?: string;
    frequency?: string;
    start?: string;
    end?: string;
    length?: number;
    offset?: number;
}): Promise<EiaResponse>;
/** Get state energy profile data (SEDS). */
export declare function getStateEnergy(opts?: {
    state?: string;
    msn?: string;
    start?: string;
    end?: string;
    length?: number;
    offset?: number;
}): Promise<EiaResponse>;
/** Get total energy overview. */
export declare function getTotalEnergy(opts?: {
    msn?: string;
    frequency?: string;
    start?: string;
    end?: string;
    length?: number;
    offset?: number;
}): Promise<EiaResponse>;
/** Clear cached responses. */
export declare function clearCache(): void;
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