
class StatePreparation:
    """
    Base class for quantum state preparation.
    
    """
    def __init__(self,
                 Nqubit = None,
                 state_vector = None,
                 state_preparation_circuit = None,
                 backend = None
                 ):
        """
        Initialization for the StatePreparation class.

        Parameters
        ----------
        Nqubit : Optional[int]
            Number of qubits.
        state_vector : Optional[List[float]]
            State vector. If `state_preparation_circuit` is not provided, state_vector is used for initialization.
        state_preparation_circuit : Optional[Any]
            Quantum circuit for state preparation.
        backend : Optional[Any]
            Backend for state preparation.
        """

        self.Nqubit = Nqubit
        self.state_vector = state_vector
        self.state_preparation_circuit = state_preparation_circuit
        self.backend = backend

        if self.state_vector is None and self.state_preperation_circuit is None:
            raise ValueError("Provide either 'state_vector' or 'state_preparation_circuit")

    def get_circuit(self):
        """
        Get the state preparation circuit.
        """
        pass

    def measure(self):
        """
        Measure the prepared quantum state
        """
        pass
