[
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "_user",
        "type": "address"
      }
    ],
    "name": "balanceOfUnderlying",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "underlying",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "",
        "type": "address"
      }
    ],
    "name": "creditBalances",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "uint256",
        "name": "_credits",
        "type": "uint256"
      }
    ],
    "name": "creditsToUnderlying",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "underlying",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "uint256",
        "name": "_amount",
        "type": "uint256"
      }
    ],
    "name": "depositInterest",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "uint256",
        "name": "_amount",
        "type": "uint256"
      },
      {
        "internalType": "address",
        "name": "_beneficiary",
        "type": "address"
      }
    ],
    "name": "depositSavings",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "creditsIssued",
        "type": "uint256"
      }
    ],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "uint256",
        "name": "_amount",
        "type": "uint256"
      }
    ],
    "name": "depositSavings",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "creditsIssued",
        "type": "uint256"
      }
    ],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "exchangeRate",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "uint256",
        "name": "_amount",
        "type": "uint256"
      }
    ],
    "name": "redeem",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "massetReturned",
        "type": "uint256"
      }
    ],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "uint256",
        "name": "_amount",
        "type": "uint256"
      }
    ],
    "name": "redeemCredits",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "underlyingReturned",
        "type": "uint256"
      }
    ],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "uint256",
        "name": "_amount",
        "type": "uint256"
      }
    ],
    "name": "redeemUnderlying",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "creditsBurned",
        "type": "uint256"
      }
    ],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "underlying",
    "outputs": [
      {
        "internalType": "contract IERC20",
        "name": "underlyingMasset",
        "type": "address"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "uint256",
        "name": "_underlying",
        "type": "uint256"
      }
    ],
    "name": "underlyingToCredits",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "credits",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  }
]