Source code for flash.core.data.io.output
# Copyright The PyTorch Lightning team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
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# Unless required by applicable law or agreed to in writing, software
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from abc import abstractmethod
from typing import Any
import flash
from flash.core.data.properties import Properties
[docs]class Output(Properties):
"""An :class:`.Output` encapsulates a single :meth:`~flash.core.data.io.output.Output.transform` method which is
used to convert the model output into the desired output format when predicting."""
[docs] @classmethod
@abstractmethod
def from_task(cls, task: "flash.Task", **kwargs) -> "Output":
"""Instantiate the output from the given :class:`~flash.core.model.Task`."""
return cls()
[docs] @staticmethod
def transform(sample: Any) -> Any:
"""Convert the given sample into the desired output format.
Args:
sample: The output from the :class:`.OutputTransform`.
Returns:
The converted output.
"""
return sample
def __call__(self, sample: Any) -> Any:
return self.transform(sample)