gistfile1.txt

contract Keystore {
  address[] public owners;

  function buyKey() payable {
    require(msg.value >= 1000000000000000);
    owners.push(msg.sender);
  }
}

truffle(development)> ks.buyKey
{ [Function]
  call: [Function],
  sendTransaction: [Function],
  request: [Function: bound ],
  estimateGas: [Function] }
truffle(development)> ks.buyKey.call("0x03A5C646f456bfB8521F899dA4789dFFC52a830E")

truffle(development)> ks.buyKey.call("0x03A5C646f456bfB8521F899dA4789dFFC52a830E")
Error: Invalid number of arguments to Solidity function
    at Object.InvalidNumberOfSolidityArgs (/usr/local/lib/node_modules/truffle/build/cli.bundled.js:41471:16)
    at SolidityFunction.validateArgs (/usr/local/lib/node_modules/truffle/build/cli.bundled.js:327892:22)
    at SolidityFunction.toPayload (/usr/local/lib/node_modules/truffle/build/cli.bundled.js:327908:10)
    at SolidityFunction.call (/usr/local/lib/node_modules/truffle/build/cli.bundled.js:327949:24)
    at /usr/local/lib/node_modules/truffle/build/cli.bundled.js:316821:16
    at new Promise (<anonymous>)
    at /usr/local/lib/node_modules/truffle/build/cli.bundled.js:316812:18
    at <anonymous>
    at process._tickDomainCallback (internal/process/next_tick.js:228:7)
truffle(development)>