const contractModule = function (exports, require, module, pfe) {
  // SomeContract smart contract code
}

const exports = {};
const require = function (moduleName) {
  // the packet search logic available for a smart contract
}
const module = {
  name: "SomeContract"
}

const fee = 0.004 /* a fee for the whole smart contract execution, taken from transaction */
const feePrice = 0.00000001 /* one elementary execution unit cost, taken from transaction (a tool to raise the fee and the transaction priority to be included in the next block) */

const pfe = function(price) {
  fee -= feePrice * price
  if (fee <=0 ) {
    throw new Exception('Funds insufficient to execute the new smart contract')
  }
}

// thus we get an exported smart contract class
const contractClass = contractModule(exports, require, module, pfe).default;
// smart contract object instantiation
const contractObject = new contractClass();
// serialization of a contract in the smart contract storage to find it there later with all the corresponding status data
save(contractObject)

The method is called equivalently to the sample above but we should keep in mind that the object of a smart contract created above has been serialized somewhere and to call its method later - deserialized all its status data.

const contractObject = load('Smart contract address')
contractObject.getRandom();