/** Normalize provider tool input by removing transient empty-object prefixes. */
export declare function stripLeadingEmptyObjectPlaceholder(rawArgs: string): string;
/** Merge tool input delta helper. */
export declare function mergeToolInputDelta(currentArguments: string, nextDelta: string): string;
/** Input payload for merge tool call. */
export declare function mergeToolCallInput(currentArguments: string, nextInput: string): string;
/** Parses tool input object. */
export declare function parseToolInputObject(input: unknown): Record<string, unknown>;
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