import type { FunctionDefinition } from '../../definition_types';
/**
 * Returns true if the supplied geometry is empty.
 * An empty geometry is one that has no points, such as an empty geometry collection or an empty linestring.
 *
 * @example
 * ROW point = TO_GEOPOINT("POINT(1.0 2.0)"),
 *     empty_line = TO_GEOSHAPE("LINESTRING EMPTY"),
 *     empty_polygon = TO_GEOSHAPE("POLYGON EMPTY")
 * | EVAL pt_empty = ST_ISEMPTY(point),
 *        line_empty = ST_ISEMPTY(empty_line),
 *        polygon_empty = ST_ISEMPTY(empty_polygon)
 * | KEEP pt_empty, line_empty, polygon_empty
 */
declare const definition: FunctionDefinition;
export default definition;
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