import { Visit } from '../interface.js';
export default class PolymorphicSchema {
    private _schemaAttribute;
    protected schema: any;
    constructor(definition: any, schemaAttribute?: string | ((...args: any) => any));
    get isSingleSchema(): boolean;
    define(definition: any): void;
    getSchemaAttribute(input: any, parent: any, key: any): any;
    inferSchema(input: any, parent: any, key: any): any;
    schemaKey(): string;
    normalizeValue(value: any, parent: any, key: any, delegate: {
        visit: Visit;
    }): any;
    denormalizeValue(value: any, unvisit: any): any;
}
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