export interface OptimadeStructure {
    id: string;
    type: `structures`;
    attributes: {
        chemical_formula_descriptive?: string;
        chemical_formula_reduced?: string;
        chemical_formula_anonymous?: string;
        dimension_types?: number[];
        nperiodic_dimensions?: number;
        lattice_vectors?: number[][];
        cartesian_site_positions?: number[][];
        species_at_sites?: string[];
        species?: {
            name: string;
            chemical_symbols?: string[];
            concentration?: number[];
            mass?: number[];
            original_name?: string;
        }[];
        n_sites?: number;
        last_modified?: string;
        immutable_id?: string;
        [key: string]: unknown;
    };
    relationships?: Record<string, unknown>;
    links?: Record<string, unknown>;
}
export interface OptimadeProvider {
    id: string;
    type: `links`;
    attributes: {
        name: string;
        description?: string;
        base_url: string;
        homepage?: string;
        version?: string;
        [key: string]: unknown;
    };
}
export declare function fetch_optimade_providers(): Promise<OptimadeProvider[]>;
export declare const encode_structure_id: (id: string) => string;
export declare const decode_structure_id: (encoded_id: string) => string;
export declare function detect_provider_from_slug(slug: string, providers: OptimadeProvider[]): string;
export declare function fetch_optimade_structure(structure_id: string, provider: string, providers: OptimadeProvider[]): Promise<OptimadeStructure | null>;
export declare function fetch_suggested_structures(provider: string, providers: OptimadeProvider[], limit?: number): Promise<OptimadeStructure[]>;