import { DataTypeFieldConfig, FieldType, DataTypeFields, GeoPoint, GeoBoundary } from '@terascope/types';
type CoerceFN<T = unknown> = (input: unknown) => T;
/** Will return a function that will coerce the input values to the DataTypeFieldConfig provided.
 * The parameter childConfig is only necessary with Tuple or Object field types
 */
export declare function coerceToType<T = unknown>(fieldConfig: DataTypeFieldConfig, childConfig?: DataTypeFields): CoerceFN<T>;
export declare function coerceToNumberType(type: FieldType): (input: unknown) => number | bigint;
/**
 * Convert value to a GeoPoint data type
*/
export declare function coerceToGeoPoint(input: unknown): GeoPoint;
/**
 * Convert value to a GeoBoundary data type, a GeoBoundary
 * is two GeoPoints, one representing the top left, the other representing
 * the bottom right
*/
export declare function coerceToGeoBoundary(input: unknown): GeoBoundary;
/**
 * If we have a hash that is a long value we want to ensure that
 * the value doesn't explode the memory since we may be using
 * that value as a key. So when a string exceeds this specified
 * length we can reduce its length to 35 characters by using md5
*/
export declare const MAX_STRING_LENGTH_BEFORE_MD5 = 1024;
/**
 * Generate a unique hash code from a value, this is
 * not a guarantee but it is close enough for doing
 * groupBys and caching
*/
export declare function getHashCodeFrom(value: unknown): string;
export declare function md5(value: string | Buffer): string;
export {};
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