/**
 * Helpers for building filter expressions from structured tool parameters.
 *
 * Several APIs take a query language in a URL parameter — Socrata SoQL
 * `$where` (CDC, BTS) and OData `$filter` (OpenFEMA). Values interpolated
 * into those expressions must be quoted and escaped, otherwise an apostrophe
 * ("Prince George's") produces a syntax error or changes the filter.
 *
 * Only use these for values from structured parameters. Tools that accept a
 * raw expression from the caller (e.g. cdc_query `where`, fema_query `filter`)
 * pass it through unchanged by design.
 */
/** SoQL string literal: `O'Brien` → `'O''Brien'`. */
export declare function soqlString(value: string | number): string;
/** SoQL substring pattern for LIKE: `Coeur d'Alene` → `'%Coeur d''Alene%'`. */
export declare function soqlContains(value: string): string;
/** OData string literal: `Prince George's` → `'Prince George''s'`. */
export declare function odataString(value: string | number): string;
/** An integer for use in a filter expression; throws on anything else. */
export declare function integerValue(value: unknown, name: string): number;
/** An ISO date or datetime (YYYY-MM[-DD][Thh:mm[:ss[.fff]]][Z]) for a filter expression; throws otherwise. */
export declare function isoDateValue(value: string, name: string): string;
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