import { type SessionStepState } from "#execution/publish-session-events.js";
import { type ExecutionInstrumentation } from "#instrumentation/runtime.js";
/** The step output preserves the start time when the workflow resumes in another worker. */
export declare function startTaskToolCallsStep(): Promise<number>;
export declare function traceTaskToolCallStep(target: SessionStepState, call: Parameters<ExecutionInstrumentation["instrumentTaskToolCall"]>[0]): Promise<Omit<import("#execution/publish-session-events.js").PublishedSessionEvents, keyof import("#execution/session/state-delta.js").SessionStateValues> & import("#execution/session/state-delta.js").SessionStateTransition>;