Function appendPythonSessionEventsAllList

scripts/codegen/python.ts:3268–3308

* Appends an `__all__` list to the generated session-events module so that * the public ``copilot.session_events`` shim can ``from .generated.session_events * import *`` without leaking helper functions (``from_str``, ``from_int``, …) * or TypeVars (``T``, ``EnumT``). Internal-marked types are om

(code: string, _schema: JSONSchema7, internalTypeNames: Set<string>)

 * (`_`-prefixed) form is still present in the module for cross-module use.
 */
function appendPythonSessionEventsAllList(code: string, _schema: JSONSchema7, internalTypeNames: Set<string>): string {
    const exported = new Set<string>();

    // All top-level public classes (schema-derived and inline event payload
    // shapes alike). The codegen only emits classes that are part of the
    // protocol surface, so a class-presence filter is sufficient — the
    // utility module excludes helpers like `from_str` / `to_class` because
    // they are functions, not classes, and TypeVars are assignments.
    const classPattern = /^class\s+([A-Za-z_]\w*)\b/gm;
    let match: RegExpExecArray | null;
    while ((match = classPattern.exec(code)) !== null) {
        const name = match[1];
        if (name.startsWith("_")) continue;
        if (internalTypeNames.has(name)) continue;
        exported.add(name);
    }

    // Top-level CamelCase Assign targets (e.g. `SessionEventData = X | Y |
    // ...` discriminated-union aliases). Skip TypeVars.
    const assignPattern = /^([A-Z][A-Za-z0-9_]*)\s*=/gm;
    while ((match = assignPattern.exec(code)) !== null) {
        const name = match[1];
        if (name === "T" || name === "EnumT") continue;
        if (internalTypeNames.has(name)) continue;
        exported.add(name);
    }

    // Public top-level free functions named like `session_event_from_dict`
    // — the documented entry point for parsing event payloads from raw dicts.
    // Helper functions like `from_str` / `to_class` live in `utility` (a
    // different module) so they don't appear here.
    const fnPattern = /^def\s+([a-z][A-Za-z0-9_]*)\s*\(/gm;
    while ((match = fnPattern.exec(code)) !== null) {
        const name = match[1];
        if (name.startsWith("_")) continue;
        if (!name.endsWith("_from_dict") && !name.endsWith("_to_dict")) continue;
        exported.add(name);
    }

    return code.replace(/\s*$/, "") + "\n\n" + renderPythonAllList([...exported].sort()) + "\n";
}

/**
 * Appends an `__all__` list to the generated RPC module so that the public