/**
 * Resolve the consumer project's native TypeScript (`tsc`) binary and metadata.
 *
 * Resolution order:
 *
 * 1. `opts.binary` or `TTSC_TSGO_BINARY` env var — must be an existing absolute
 *    path; returns `{ binary, packageJson: "", packageRoot, version: "custom"
 *    }`.
 * 2. `typescript` resolved from the project `cwd`.
 * 3. `typescript` resolved from `opts.resolveFrom` (for test harnesses and
 *    embedders that anchor to a different directory).
 *
 * Throws a descriptive error when the package or platform binary is missing so
 * callers never have to reason about undefined binary paths.
 */
export declare function resolveTsgo(opts?: {
    /** Explicit path to a native `tsc` binary; bypasses package resolution. */
    binary?: string;
    /** Directory from which to discover `typescript`. */
    cwd?: string;
    env?: NodeJS.ProcessEnv;
    /**
     * Fallback resolution anchor used when the package is not found at `cwd`.
     * Useful in test harnesses that install the package into a different tree.
     */
    resolveFrom?: string;
}): {
    binary: string;
    packageJson: string;
    packageRoot: string;
    version: string;
    gitHead?: undefined;
    platformPackageJson?: undefined;
} | {
    binary: string;
    gitHead: string | undefined;
    packageJson: string;
    packageRoot: string;
    platformPackageJson: string;
    version: string;
};