import abc

class abstract_instrument(object):
	__metaclass__ = abc.ABCMeta

	@abc.abstractmethod
	def __init__(self, adress, vtype):
		"""Build the class"""
		return

	@abc.abstractmethod
	def model(self):
		"""return the instrument model"""
		return

	@abc.abstractmethod
	def connect(self):
		"""Create a connection with the instrument"""
		return

	@abc.abstractmethod
	def disconnect(self):
		"""Disconnect the instrument"""
		return

	@abc.abstractmethod
	def read(self):
		"""read the buffer"""
		return

	@abc.abstractmethod
	def send(self):
		"""send a command"""
		return

	@abc.abstractmethod
	def getValue(self):
		"""return the value of measurment"""
		return