| from typing import List | |
| from .artifact import Artifact | |
| from .collections import Collection | |
| from .dataclass import OptionalField | |
| from .loaders import Loader | |
| from .operator import StreamingOperator | |
| from .splitters import RandomSampler, Sampler | |
| from .task import Task | |
| class TaskCard(Artifact): | |
| """TaskCard delineates the phases in transforming the source dataset into a model-input, and specifies the metrics for evaluation of model-output. | |
| Attributes: | |
| loader: specifies the source address and the loading operator that can access that source and transform it into a unitxt multistream. | |
| preprocess_steps: list of unitxt operators to process the data source into a model-input. | |
| task: specifies the fields (of the already (pre)processed instance) making the inputs, the fields making the outputs, and the metrics to be used for evaluating the model output. | |
| templates: format strings to be applied on the input fields (specified by the task) and the output fields. The template also carries the instructions and the list of postprocessing steps, to be applied to the model output. | |
| """ | |
| loader: Loader | |
| preprocess_steps: List[StreamingOperator] = None | |
| task: Task | |
| templates: Collection = None | |
| sampler: Sampler = OptionalField(default_factory=RandomSampler) | |