import type { RuleValue } from '../main/rule-value/rule-value';
import type { Field, ModelRule, Operator, Styles } from '../types';
export declare const getFieldInput: (context: RuleValue | ModelRule) => "number" | "date" | "text" | "checkbox" | "select" | "datetime-local";
export declare const getFieldType: (context: RuleValue | ModelRule) => "string" | "boolean" | "int" | "short" | "double" | "long" | "bigdecimal" | "enum" | "date" | "date-time";
export declare const processOptGroups: <T extends Operator | Field>(xs: T[]) => (T | {
    optgroup: string | null;
    xs: T[];
})[];
/**
 * Utility function to add custom styles to a web component's shadow root
 *
 * @param component The web component instance
 * @param styles The styles configuration object
 * @param styleKey The key in styles.customStyles to use for custom styles
 */
export declare function applyCustomStyles(component: HTMLElement, styles: Styles | undefined | null, styleKey: keyof NonNullable<Styles['customStyles']>): void;
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