/**
 * Code Mode — E2B transport
 *
 * The default {@link StdioCodeModeTransport} in `@mastra/core` writes the
 * runner/program files to the *host* tmpdir and spawns `node <hostPath>`. That
 * only works when the sandbox shares the host filesystem (e.g. `LocalSandbox`).
 * E2B runs the program in a remote micro-VM with its own filesystem, so the
 * host paths don't exist there and `node` exits immediately.
 *
 * `E2BCodeModeTransport` writes the runner/program *into* the sandbox via the
 * E2B files API and runs plain `node <runnerPath>` inside the VM. TypeScript is
 * stripped on the host with esbuild before upload, so it doesn't depend on the
 * sandbox's Node version (the core transport relies on
 * `node --experimental-strip-types`, which needs Node >= 22.6).
 *
 * The RPC frame protocol (host <-> runner) is unchanged: it reuses
 * `buildProgramModule`, `buildRunner`, and `FRAME_PREFIX` from
 * `@mastra/core/tools`.
 */
import type { CodeModeToolResult, CodeModeTransport } from '@mastra/core/tools';
/**
 * Code Mode transport for {@link E2BSandbox}.
 *
 * Writes the generated program and runner into the sandbox filesystem, runs
 * `node` there, and bridges `external_*` RPC calls back to the host over the
 * process's stdout/stdin — the same frame protocol as the core stdio transport.
 *
 * @example
 * ```typescript
 * import { createCodeMode } from '@mastra/core/tools';
 * import { E2BSandbox, E2BCodeModeTransport } from '@mastra/e2b';
 *
 * const { tool, instructions } = createCodeMode(
 *   { tools: { getWeather, getForecast }, sandbox: new E2BSandbox() },
 *   new E2BCodeModeTransport(),
 * );
 * ```
 */
export declare class E2BCodeModeTransport implements CodeModeTransport {
    run(opts: Parameters<CodeModeTransport['run']>[0]): Promise<CodeModeToolResult>;
}
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