import { MultiProvider, NullIsmConfig } from '@hyperlane-xyz/sdk';
import { WithAddress } from '@hyperlane-xyz/utils';
import type { MetadataBuilder, MetadataContext, NullMetadataBuildResult } from './types.js';
export declare const NULL_METADATA = "0x";
export type NullMetadata = {
    type: NullIsmConfig['type'];
};
export declare class NullMetadataBuilder implements MetadataBuilder {
    protected multiProvider: MultiProvider;
    constructor(multiProvider: MultiProvider);
    build(context: MetadataContext<WithAddress<NullIsmConfig>>): Promise<NullMetadataBuildResult>;
    static decode(ism: NullIsmConfig): NullMetadata;
}
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