Create the initialization function

GP_initialization.py

class GaussianProcess:
    """A Gaussian Process class for creating and exploiting  
    a Gaussian Process model"""
    
    def __init__(self, n_restarts, optimizer):
        """Initialize a Gaussian Process model
        
        Input
        ------
        n_restarts: number of restarts of the local optimizer
        optimizer: algorithm of local optimization"""
        
        self.n_restarts = n_restarts
        self.optimizer = optimizer