new_contents: student: {
    balance: currency_value, # cashier issued Philippine Peso-pegged token for e-transaction in PSHS
    id_num: bytes32, # Registrar specified Id number (e.g. "13-6363623")
  	enrolled: bool,
  	first_name: bytes32, # Legal first name
  	last_name: bytes32, # Legal last name
  	grade: num[6][8] # [year][subject number code]
           }[address]
  
  cashier: address
  reserve: num
  
  
  def __init__(_cashier: address):
  	self.cashier = _cashier # Central token authority
  	self.reserve = 100000 # 100,000 Pesos Starting Cash Reserve
  
  @payable
  def register(_id_num: bytes32, _first_name: bytes32, _last_name: bytes32):	
  	assert not self.student[msg.sender].enrolled # Throws if user is already enrolled
  	
  	self.student[msg.sender].id_num = _id_num
  	self.student[msg.sender].first_name = _first_name
  	self.student[msg.sender].last_name = _last_name
  	self.student[msg.sender].enrolled = True
  	
  def issuePeso(_amount: num, _to: address):
  	assert msg.sender == self.cashier # Throws if user is not the cashier
  	self.reserve += _amount # Add _amount to current reserve
  	
  	
  
    
  
subject: Update main.v.py