def create_data_model(distancematrix):
    """
    Create a dictionary/data model
    
    Parameters:
    distancematrix (float[][]): array of distances between addresses
    
    Returns:
    dictionary: data model generated
    """
    # initiate ORTools
    data = {}
    data['distance_matrix'] = distancematrix
    data['num_vehicles'] = 1
    data['depot'] = 0
    return (data)