Class: TransformersJsGenerationAdapter

Defined in: src/batteries/generation/transformers_js/adapter.ts:123

Media generation adapter for transformers.js's Janus (MultiModalityCausalLM) text→image model family.

Remarks

Reusable: construct once, call TransformersJsGenerationAdapter.generate as many times as needed. The model + processor are resolved lazily on first use (or via preload) and cached with single-flight semantics so concurrent calls share one load. edit always throws — see the module remarks.

Constructors

Constructor

new TransformersJsGenerationAdapter(options: unknown): TransformersJsGenerationAdapter;

Defined in: src/batteries/generation/transformers_js/adapter.ts:146

Parameters

Parameter	Type	Description
options	unknown	Constructor options. Validated eagerly.

Returns

TransformersJsGenerationAdapter

Throws

@nhtio/adk/batteries!E_INVALID_TRANSFORMERS_JS_GENERATION_OPTIONS when invalid.

Methods

edit()

edit(
   _image: unknown,
   _prompt: string,
_opts?: EditOptions): Promise<GeneratedMediaOutput[]>;

Defined in: src/batteries/generation/transformers_js/adapter.ts:326

Unsupported. Janus's only generation entry point (generate_images) is text-conditioned; there is no image-conditioned edit/inpaint surface in the installed @huggingface/transformers API.

Parameters

Parameter	Type
_image	unknown
_prompt	string
_opts?	EditOptions

Returns

Promise<GeneratedMediaOutput[]>

Throws

@nhtio/adk/batteries!E_TRANSFORMERS_JS_GENERATION_UNSUPPORTED_OPERATION always.

---

generate()

generate(prompt: string, opts?: TransformersJsGenerateOptions): Promise<GeneratedMediaOutput[]>;

Defined in: src/batteries/generation/transformers_js/adapter.ts:241

Generates image(s) from a text prompt via Janus's generate_images.

Parameters

Parameter	Type	Description
prompt	string	The text prompt describing the desired image.
opts?	TransformersJsGenerateOptions	Per-call knob overrides — see TransformersJsGenerateOptions.

Returns

Promise<GeneratedMediaOutput[]>

The generated image(s), each PNG-encoded.

Throws

@nhtio/adk/batteries!E_TRANSFORMERS_JS_GENERATION_ENGINE_ERROR when the call fails or returns no usable images.

---

isAvailable()

isAvailable(): boolean;

Defined in: src/batteries/generation/transformers_js/adapter.ts:153

Instance availability probe (honours an injected isAvailable).

Returns

boolean

---

preload()

preload(): Promise<void>;

Defined in: src/batteries/generation/transformers_js/adapter.ts:158

Eagerly loads (and caches) the model + processor so the first generate call is fast. Idempotent.

Returns

Promise<void>

---

reset()

reset(): void;

Defined in: src/batteries/generation/transformers_js/adapter.ts:163

Drops the cached model/processor and in-flight load so the next call reloads.

Returns

void

---

isAvailable()

static isAvailable(): boolean;

Defined in: src/batteries/generation/transformers_js/adapter.ts:138

Whether this battery is available. transformers.js is environment-neutral (Node + browser), so this is true whenever the runtime can import the peer — there is no WebGPU requirement.

Returns

boolean