added dataset abstract method

src/caked/base.py

@@ -0,0 +1,31 @@
+from abc import ABC, abstractmethod
+from pathlib import Path
+
+from torch.utils.data import DataLoader, Dataset
+
+
+class AbstractDataLoader(DataLoader, ABC):
+    @abstractmethod
+    def read(self, pipeline, classes, volume_size, dataset_size, save_to_disk):
+        pass
+
+    @abstractmethod
+    def process(self, dataset, classes, split_size, batch_size, training):
+        pass
+
+
+class AbstractDataset(ABC, Dataset):
+    def __init__(self, origin: str, classes: Path) -> None:
+        pass
+
+    def __len__(self) -> int:
+        pass
+
+    @abstractmethod
+    def set_len(self, length:int):
+        pass
+
+    @abstractmethod
+    def augment(self, augment:bool, aug_type:str):
+        pass
+