# fiftyone.core.map.factory Factory for mapping backends. Copyright 2017-2026, Voxel51, Inc.
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**Classes:** | [`MapperFactory`](#fiftyone.core.map.factory.MapperFactory)() | Manage mapper implementations | |-----------------------------------------------------------------|---------------------------------| ### *class* fiftyone.core.map.factory.MapperFactory Bases: `object` Manage mapper implementations **Methods:** | [`batch_methods`](#fiftyone.core.map.factory.MapperFactory.batch_methods)() | Get available batch methods | |---------------------------------------------------------------------------------------------|---------------------------------| | [`mapper_keys`](#fiftyone.core.map.factory.MapperFactory.mapper_keys)() | Get available mapper class keys | | [`create`](#fiftyone.core.map.factory.MapperFactory.create)([mapper_key, num_workers, ...]) | Create a mapper instance | #### *classmethod* batch_methods() → List[str] Get available batch methods #### *classmethod* mapper_keys() → List[str] Get available mapper class keys #### *classmethod* create(mapper_key: str | None = None, num_workers: int | None = None, batch_method: str | None = None, batch_size: int | None = None, \*\*mapper_extra_kwargs) → [Mapper](fiftyone.core.map.mapper.md#fiftyone.core.map.mapper.Mapper) Create a mapper instance