# fiftyone.core.map.batcher.slice_batch Abstract mapping backend Copyright 2017-2026, Voxel51, Inc.
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**Classes:** | [`SampleSliceBatch`](#fiftyone.core.map.batcher.slice_batch.SampleSliceBatch)(start_idx, stop_idx) | Sample batch using slices | |------------------------------------------------------------------------------------------------------|-----------------------------| ### *class* fiftyone.core.map.batcher.slice_batch.SampleSliceBatch(start_idx: int, stop_idx: int) Bases: [`SampleBatch`](fiftyone.core.map.batcher.batch.md#fiftyone.core.map.batcher.batch.SampleBatch) Sample batch using slices **Methods:** | [`split`](#fiftyone.core.map.batcher.slice_batch.SampleSliceBatch.split)(sample_collection, num_workers[, ...]) | Create a list of sample batches | |-------------------------------------------------------------------------------------------------------------------|-------------------------------------------| | [`create_subset`](#fiftyone.core.map.batcher.slice_batch.SampleSliceBatch.create_subset)(sample_collection) | Create a sample collection from the batch | **Attributes:** | [`total`](#fiftyone.core.map.batcher.slice_batch.SampleSliceBatch.total) | Get the total number of samples in the batch | |----------------------------------------------------------------------------|------------------------------------------------| #### *classmethod* split(sample_collection: [SampleCollection](fiftyone.core.map.typing.md#fiftyone.core.map.typing.SampleCollection)[T], num_workers: int, batch_size: int | None = None) → List[[SampleSliceBatch](#fiftyone.core.map.batcher.slice_batch.SampleSliceBatch)] Create a list of sample batches #### *property* total *: int* Get the total number of samples in the batch #### create_subset(sample_collection: [SampleCollection](fiftyone.core.map.typing.md#fiftyone.core.map.typing.SampleCollection)[T]) → [SampleCollection](fiftyone.core.map.typing.md#fiftyone.core.map.typing.SampleCollection)[T] Create a sample collection from the batch