// Result-returning variants demo (R methods)
// Run:
//   NYASH_CLI_VERBOSE=1 ./target/release/nyash --backend vm examples/py_result_chain_demo.hako

static box Main {
  main() {
    local py, mR, fR, rR, badR
    py = new PyRuntimeBox()
    // Use R variants to get Result boxes
    mR = py.importR("math")
    fR = mR.getattrR("sqrt")
    rR = fR.callR(9)
    me.console.log("sqrt(9) via R=", rR.toString())

    // Error example: getattrR on missing name
    badR = mR.getattrR("no_such_attr")
    me.console.log("missing getattrR=", badR.toString())
    return 0
  }
}