import os
import numpy as np
import pandas as pd

__all__ = ["BaseLoader"]


class BaseLoader:
    def __init__(self, path: "str"):
        self.have: "np.ndarray" = np.array([])
        self.test: "np.ndarray" = np.array([])
        self.none: "np.ndarray" = np.array([])

        self._load(path)

    def _load(self, path: "str") -> "None":
        raise NotImplementedError("you should implement func: `_load(path)`.")

    def toh(self, file: "str") -> "None":
        raise NotImplementedError("you should implement func: `toh(file)`.")

    def toc(self, file: "str") -> "None":
        raise NotImplementedError("you should implement func: `toc(file)`.")