What can Juttle do for you? A module example.

main.juttle

export const pi = 3.14;       // visible outside this module
const not_exported = 2;       // not visible
export function double(x) {   // visible
  return x * not_exported; 
}

export sub stamper(mark) {    // visible
  put stamp=mark | put stamp2=mark
}

// top-level flowgraph, does not run when this module is imported
emit 
| stamper -mark "test" 
| view table;