def METHOD_NAME(
    **instance_params: Any,
) -> BackendRuntimeParams:
    capabilities = ALL_BACKEND_CAPABILITIES
    if not _is_c_utf8_locale_present():
        capabilities &= ~BackendCapabilities.C_UTF8_LOCALE
    instance_params.setdefault('capabilities', capabilities)
    if 'tenant_id' not in instance_params:
        instance_params = dict(
            tenant_id=buildmeta.get_default_tenant_id(),
            **instance_params,
        )
    if 'version' not in instance_params:
        instance_params = dict(
            version=buildmeta.get_pg_version(),
            **instance_params,
        )
    return BackendRuntimeParams(
        instance_params=BackendInstanceParams(**instance_params),
    )