GLiNER2

Bases: Engine[PromptSignature, Result, Model, InferenceMode]

Engine adapter for GLiNER2.

Source code in sieves/engines/gliner_.py

class GliNER(Engine[PromptSignature, Result, Model, InferenceMode]):
    """Engine adapter for GLiNER2."""

    @override
    @property
    def inference_modes(self) -> type[InferenceMode]:
        return InferenceMode

    @override
    @property
    def supports_few_shotting(self) -> bool:
        return False

    @override
    def build_executable(
        self,
        inference_mode: InferenceMode,
        prompt_template: str | None,
        prompt_signature: type[PromptSignature] | PromptSignature,
        fewshot_examples: Sequence[pydantic.BaseModel] = (),
    ) -> Executable[Result]:
        cls_name = self.__class__.__name__
        if len(list(fewshot_examples)):
            warnings.warn(f"Few-shot examples are not supported by engine {cls_name}.")

        # Overwrite prompt default template, if template specified. Note that this is a static prompt and GliNER doesn't
        # do few-shotting, so we don't inject anything into the template.
        if prompt_template:
            self._model.prompt = jinja2.Template(prompt_template).render()

        def execute(values: Sequence[dict[str, Any]]) -> Iterable[Result]:
            """Execute prompts with engine for given values.

            :param values: Values to inject into prompts.
            :return Iterable[Result]: Results for prompts.
            """
            yield from self._model.batch_extract(
                texts=[val["text"] for val in values],
                schemas=prompt_signature,
                **({"batch_size": len(values)} | self._inference_kwargs | {"include_confidence": True}),
            )

        return execute

generation_settings property

Return generation settings.

Returns:

Type	Description
GenerationSettings	Generation settings.

model property

Return model instance.

Returns:

Type	Description
EngineModel	Model instance.

__init__(model, generation_settings)

Initialize engine with model and generation settings.

Parameters:

Name	Type	Description	Default
model	EngineModel	Instantiated model instance.	required
generation_settings	GenerationSettings	Generation settings.	required

Source code in sieves/engines/core.py

def __init__(self, model: EngineModel, generation_settings: GenerationSettings):
    """Initialize engine with model and generation settings.

    :param model: Instantiated model instance.
    :param generation_settings: Generation settings.
    """
    self._model = model
    self._generation_settings = generation_settings
    self._inference_kwargs = generation_settings.inference_kwargs or {}
    self._init_kwargs = generation_settings.init_kwargs or {}
    self._strict_mode = generation_settings.strict_mode

convert_fewshot_examples(fewshot_examples) staticmethod

Convert few‑shot examples to dicts.

Parameters:

Name	Type	Description	Default
fewshot_examples	Sequence[BaseModel]	Fewshot examples to convert.	required

Returns:

Type	Description
list[dict[str, Any]]	Fewshot examples as dicts.

Source code in sieves/engines/core.py

@staticmethod
def convert_fewshot_examples(fewshot_examples: Sequence[pydantic.BaseModel]) -> list[dict[str, Any]]:
    """Convert few‑shot examples to dicts.

    :param fewshot_examples: Fewshot examples to convert.
    :return: Fewshot examples as dicts.
    """
    return [fs_example.model_dump(serialize_as_any=True) for fs_example in fewshot_examples]