[brunosutic]

Your input would work exactly as you wrote it if passed to `Billing::Plan.find_or_create_all_by_attrs!`, just add commas at the end of lines.

If you want to make it even shorter, you have a few options - it really just comes down to preference:

  # Option 1. my personal favorite, follows structure of
  # intervals and plans on a pricing page.
  1.month => {red: 10, blue: 120},
  1.year => {red: 120, blue: 300}

  # Option 2. this is fine too
  red: {1.month => 10, 1.year => 120},
  blue: {1.month => 120, 1.year => 300}

  # Option 3. possible and works, but hurts my brain, NOT recommended
  10 => {red: 1.month},
  120 => {red: 1.year, blue: 1.month},
  300 => {blue: 1.year}

> there is always at least one attribute that serves as a "discriminator" between the billing plans, right

Just a note: if you try to create two plans with the same attributes, that would error because of ActiveRecord uniqueness validations (and DB constraints). No point in having multiple identical plans.