import type { TerminalState } from "@codingame/monaco-vscode-api/vscode/vs/platform/agentHost/common/state/protocol/channels-terminal/state";
import type { TerminalAction } from "@codingame/monaco-vscode-api/vscode/vs/platform/agentHost/common/state/protocol/action-origin.generated";
/**
 * Pure reducer for terminal state. Handles all {@link TerminalAction} variants.
 */
export declare function terminalReducer(state: TerminalState, action: TerminalAction, log?: (msg: string) => void): TerminalState;