/**
 * @fileoverview Weather condition codes for forecasts and observations.
 * @module meteo-lt-sdk/types/conditions
 */
/**
 * Weather condition codes used in forecast data.
 * These are the possible values returned by the forecast API.
 */
export declare const FORECAST_CONDITION_CODES: readonly ["clear", "partly-cloudy", "cloudy-with-sunny-intervals", "cloudy", "light-rain", "rain", "heavy-rain", "thunder", "isolated-thunderstorms", "thunderstorms", "heavy-rain-with-thunderstorms", "light-sleet", "sleet", "freezing-rain", "hail", "light-snow", "snow", "heavy-snow", "fog"];
/**
 * Weather condition code type for forecast data.
 * Null indicates conditions could not be determined.
 */
export type ForecastConditionCode = (typeof FORECAST_CONDITION_CODES)[number] | null;
/**
 * Weather condition codes used in observation data.
 * This is a superset of forecast conditions with additional observational values.
 */
export declare const OBSERVATION_CONDITION_CODES: readonly ["clear", "partly-cloudy", "variable-cloudiness", "cloudy-with-sunny-intervals", "cloudy", "rain-showers", "light-rain-at-times", "rain-at-times", "light-rain", "rain", "heavy-rain", "thunder", "isolated-thunderstorms", "thunderstorms", "sleet-showers", "sleet-at-times", "light-sleet", "sleet", "freezing-rain", "hail", "snow-showers", "light-snow-at-times", "snow-at-times", "light-snow", "snow", "heavy-snow", "snowstorm", "fog", "squall"];
/**
 * Weather condition code type for observation data.
 * Null indicates conditions could not be determined.
 */
export type ObservationConditionCode = (typeof OBSERVATION_CONDITION_CODES)[number] | null;
/**
 * Type guard to check if a value is a valid forecast condition code.
 * @param value - The value to check
 * @returns True if the value is a valid forecast condition code
 */
export declare function isForecastConditionCode(value: unknown): value is ForecastConditionCode;
/**
 * Type guard to check if a value is a valid observation condition code.
 * @param value - The value to check
 * @returns True if the value is a valid observation condition code
 */
export declare function isObservationConditionCode(value: unknown): value is ObservationConditionCode;
/**
 * Human-readable descriptions for weather condition codes in English.
 */
export declare const CONDITION_DESCRIPTIONS: Readonly<Record<string, string>>;
/**
 * Gets the human-readable description for a condition code.
 * @param code - The condition code
 * @returns Human-readable description or 'Unknown' if not found
 */
export declare function getConditionDescription(code: ForecastConditionCode | ObservationConditionCode): string;
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