from typing import List


def create_subdict(data: List):
    """ Return data in List form as dictionary, 
        Start, to which model parameters is appended. 
    Parameters
    -----------
    data: List
        Data (potentially pca component output in 2d form).

    Return 
    -------
        Dict:
            Dictionary with 'data' key. 
    """
    return {'data' : data}