export declare namespace LocalStateError {
    interface Options {
        path?: Array<string | number>;
        sourceError?: unknown;
    }
    namespace DocumentationTypes {
        interface InstanceProperties {
            /** The path to the field that caused the error. */
            readonly path?: Array<string | number>;
        }
    }
}
/**
 * Represents a fatal error when executing `@client` fields from `LocalState`,
 * typically to indicate a problem with the `LocalState` configuration or
 * incorrect usage of a resolver function. This error does not represent user
 * errors thrown in a local resolver when resolving `@client` fields.
 *
 * @example
 *
 * ```ts
 * import { LocalStateError } from "@apollo/client/errors";
 *
 * // Check if an error is a LocalStateError instance
 * if (LocalStateError.is(error)) {
 *   console.log("Original error:", error.cause);
 *
 *   // Determine which field caused the error
 *   if (error.path) {
 *     console.log("Error occurred at field path:", error.path.join("."));
 *   }
 * }
 * ```
 */
export declare class LocalStateError extends Error {
    /**
     * A method that determines whether an error is a `LocalStateError`
     * object. This method enables TypeScript to narrow the error type.
     *
     * @example
     *
     * ```ts
     * if (LocalStateError.is(error)) {
     *   // TypeScript now knows `error` is a LocalStateError object
     *   console.log(error.path);
     * }
     * ```
     */
    static is(error: unknown): error is LocalStateError;
    /**
    * The path to the field that caused the error.
    */
    readonly path?: Array<string | number>;
    constructor(message: string, options?: LocalStateError.Options);
}
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