from typing import List, Callable, Union
from torch_geometric.data import Data, HeteroData
from torch_geometric.transforms import BaseTransform
[docs]class Compose(BaseTransform):
"""Composes several transforms together.
Args:
transforms (List[Callable]): List of transforms to compose.
"""
def __init__(self, transforms: List[Callable]):
self.transforms = transforms
def __call__(self, data: Union[Data, HeteroData]):
for transform in self.transforms:
if isinstance(data, (list, tuple)):
data = [transform(d) for d in data]
else:
data = transform(data)
return data
def __repr__(self) -> str:
args = [f' {transform}' for transform in self.transforms]
return '{}([\n{}\n])'.format(self.__class__.__name__, ',\n'.join(args))