/**
 * Fetch function signature from 4byte.directory API
 */
export declare function fetchSignatureFrom4Byte(selector: string): Promise<string | null>;
/**
 * Infer function name from 4-byte selector
 */
export declare function inferFunctionName(selector: string, useOnlineDatabase?: boolean): Promise<string | null>;
/**
 * Infer event name from topic signature
 */
export declare function inferEventName(topic: string): string | null;
/**
 * Parse function signature to extract name and parameter types
 */
export declare function parseFunctionSignature(signature: string): {
    name: string;
    params: string[];
} | null;
/**
 * Decode function arguments from calldata using inferred signature
 * This is a simplified decoder - for full decoding, you'd need the actual ABI
 */
export declare function decodeFunctionArgs(calldata: string, signature: string): any[];
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