Fix syntax error in transformer example

[chocolateboy]

No description provided.

[ezolenko]

This is valid syntax either way?

[chocolateboy]

It's not. Try it:

$ cat temp.js

const transformer = (service) =>
{
     before: [ keysTransformer(service.getProgram()) ],
     after: []
};

$ node temp.js

temp.js:4
     after: []
          ^
SyntaxError: Unexpected token ':'

[ezolenko]

Ah, it's a function returning object literal. Missed that part, thanks.