fts-solver 0.5.1

{
  "portfolios": {
    "buyerx": {
      "price": 6.25,
      "rate": 0.5
    },
    "buyery": {
      "price": 6.25,
      "rate": 0.5
    },
    "sellerx": {
      "price": 6.25,
      "rate": -0.5
    },
    "sellery": {
      "price": 6.25,
      "rate": -0.5
    }
  },
  "products": {
    "A": {
      "price": 6.25,
      "rate": 0.5
    },
    "B": {
      "price": 6.25,
      "rate": 0.5
    }
  }
}