type ValueType = 'enrichment' | 'function' | 'literal' | 'variable';
export interface DirectiveMetadata {
    _metadata?: {
        label?: string;
        type: ValueType;
    };
}
export declare function isDirective(value: FieldValue): value is Directive;
export interface LiteralDirective extends DirectiveMetadata {
    '@literal': PrimitiveValue | Record<string, FieldValue>;
}
export declare function isLiteralDirective(value: FieldValue): value is LiteralDirective;
export interface TemplateDirective extends DirectiveMetadata {
    '@template': string;
}
export declare function isTemplateDirective(value: FieldValue): value is TemplateDirective;
export declare function getFieldValue(value: FieldValue): unknown;
export interface PathDirective extends DirectiveMetadata {
    '@path': string;
}
export declare function isPathDirective(value: FieldValue): value is PathDirective;
type RequireOnlyOne<T, Keys extends keyof T = keyof T> = {
    [K in Keys]-?: Partial<Record<Exclude<Keys, K>, undefined>> & Required<Pick<T, K>>;
}[Keys] & Pick<T, Exclude<keyof T, Keys>>;
export interface IfDirective extends DirectiveMetadata {
    '@if': RequireOnlyOne<{
        blank?: FieldValue;
        else?: FieldValue;
        exists?: FieldValue;
        then: FieldValue;
    }, 'blank' | 'exists'>;
}
export declare function isIfDirective(value: FieldValue): value is IfDirective;
export interface ArrayPathDirective extends DirectiveMetadata {
    '@arrayPath': [Directive | string, {
        [key: string]: FieldValue;
    } | undefined] | [Directive | string];
}
export declare function isArrayPathDirective(value: FieldValue): value is ArrayPathDirective;
export interface CaseDirective extends DirectiveMetadata {
    '@case': {
        operator: string;
        value?: FieldValue;
    };
}
export declare function isCaseDirective(value: FieldValue): value is CaseDirective;
export interface ReplaceDirective extends DirectiveMetadata {
    '@replace': {
        global: PrimitiveValue;
        ignorecase: PrimitiveValue;
        pattern: string;
        replacement: string;
        pattern2: string;
        replacement2: string;
        value?: FieldValue;
    };
}
export declare function isReplaceDirective(value: FieldValue): value is ReplaceDirective;
export interface JSONDirective extends DirectiveMetadata {
    '@json': {
        value: FieldValue;
        mode: PrimitiveValue;
    };
}
export declare function isJSONDirective(value: FieldValue): value is JSONDirective;
export interface FlattenDirective extends DirectiveMetadata {
    '@flatten': {
        value: FieldValue;
        separator: string;
    };
}
export declare function isFlattenDirective(value: FieldValue): value is FlattenDirective;
export interface MergeDirective extends DirectiveMetadata {
    '@merge': {
        objects: {
            [key: string]: FieldValue;
        }[];
        direction: 'left' | 'right';
    };
}
export declare function isMergeDirective(value: FieldValue): value is MergeDirective;
export interface TransformDirective extends DirectiveMetadata {
    '@transform': {
        apply: FieldValue;
        mapping: FieldValue;
    };
}
export declare function isTransformDirective(value: FieldValue): value is TransformDirective;
export interface ExcludeWhenNullDirective extends DirectiveMetadata {
    '@excludeWhenNull': FieldValue;
}
export declare function isExcludeWhenNullDirective(value: FieldValue): value is ExcludeWhenNullDirective;
export interface LiquidDirective extends DirectiveMetadata {
    '@liquid': string;
}
export declare function isLiquidDirective(value: FieldValue): value is LiquidDirective;
export type Directive = ArrayPathDirective | CaseDirective | IfDirective | LiteralDirective | PathDirective | ReplaceDirective | TemplateDirective | JSONDirective | FlattenDirective | MergeDirective | TransformDirective | ExcludeWhenNullDirective | LiquidDirective;
export type PrimitiveValue = boolean | number | string | null;
export type FieldValue = Directive | PrimitiveValue | {
    [key: string]: FieldValue;
} | FieldValue[] | undefined;
export declare function getFieldValueKeys(value: FieldValue): string[];
export declare function getRawKeys(input: FieldValue): string[];
export declare function getTemplateKeys(input: string): string[];
export {};