[
  {
    "bytes": "20",
    "label": "address",
    "offset": 0,
    "slot": "0",
    "type": "t_address"
  },
  {
    "bytes": "32",
    "label": "mapping(bytes32 => address)",
    "offset": 0,
    "slot": "1",
    "type": "t_mapping(t_bytes32,t_address)"
  }
]