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| import copy | |
| from transformers.configuration_utils import PretrainedConfig | |
| from transformers.utils import logging | |
| logger = logging.get_logger(__name__) | |
| class HybridCLIPConfig(PretrainedConfig): | |
| r""" | |
| :class:`HybridCLIPConfig` is the configuration class to store the configuration of a | |
| :class:`~HybridCLIPModel`. It is used to instantiate HybridCLIPModel model according to the specified arguments, | |
| defining the text model and vision model configs. | |
| Configuration objects inherit from :class:`~transformers.PretrainedConfig` and can be used to control the model | |
| outputs. Read the documentation from :class:`~transformers.PretrainedConfig` for more information. | |
| Args: | |
| text_config_dict (:obj:`dict`): | |
| Dictionary of configuration options that defines text model config. | |
| vision_config_dict (:obj:`dict`): | |
| Dictionary of configuration options that defines vison model config. | |
| projection_dim (:obj:`int`, `optional`, defaults to 512): | |
| Dimentionality of text and vision projection layers. | |
| kwargs (`optional`): | |
| Dictionary of keyword arguments. | |
| Examples:: | |
| >>> from transformers import BertConfig, CLIPConfig, HybridCLIPConfig, FlaxHybridCLIP | |
| >>> # Initializing a BERT and CLIP configuration | |
| >>> config_text = BertConfig() | |
| >>> config_vision = CLIPConfig() | |
| >>> config = HybridCLIPConfig.from_text_vision_configs(config_text, config_vision, projection_dim=512) | |
| >>> # Initializing a BERT and CLIPVision model | |
| >>> model = EncoderDecoderModel(config=config) | |
| >>> # Accessing the model configuration | |
| >>> config_text = model.config.text_config | |
| >>> config_vision = model.config.vision_config | |
| >>> # Saving the model, including its configuration | |
| >>> model.save_pretrained('my-model') | |
| >>> # loading model and config from pretrained folder | |
| >>> encoder_decoder_config = HybridCLIPConfig.from_pretrained('my-model') | |
| >>> model = FlaxHybridCLIP.from_pretrained('my-model', config=encoder_decoder_config) | |
| """ | |
| model_type = "hybrid-clip" | |
| is_composition = True | |
| def __init__(self, projection_dim=512, **kwargs): | |
| super().__init__(**kwargs) | |
| if "text_config" not in kwargs: | |
| raise ValueError("`text_config` can not be `None`.") | |
| if "vision_config" not in kwargs: | |
| raise ValueError("`vision_config` can not be `None`.") | |
| text_config = kwargs.pop("text_config") | |
| vision_config = kwargs.pop("vision_config") | |
| text_model_type = text_config.pop("model_type") | |
| vision_model_type = vision_config.pop("model_type") | |
| from transformers import AutoConfig | |
| self.text_config = AutoConfig.for_model(text_model_type, **text_config) | |
| if vision_model_type == "clip": | |
| self.vision_config = AutoConfig.for_model( | |
| vision_model_type, **vision_config | |
| ).vision_config | |
| elif vision_model_type == "clip_vision_model": | |
| from transformers import CLIPVisionConfig | |
| self.vision_config = CLIPVisionConfig(**vision_config) | |
| else: | |
| self.vision_config = AutoConfig.for_model( | |
| vision_model_type, **vision_config | |
| ) | |
| self.projection_dim = projection_dim | |
| self.initializer_factor = 1.0 | |
| def from_text_vision_configs( | |
| cls, text_config: PretrainedConfig, vision_config: PretrainedConfig, **kwargs | |
| ): | |
| r""" | |
| Instantiate a :class:`HybridCLIPConfig` (or a derived class) from text model configuration and | |
| vision model configuration. | |
| Returns: | |
| :class:`HybridCLIPConfig`: An instance of a configuration object | |
| """ | |
| return cls( | |
| text_config=text_config.to_dict(), | |
| vision_config=vision_config.to_dict(), | |
| **kwargs | |
| ) | |
| def to_dict(self): | |
| """ | |
| Serializes this instance to a Python dictionary. Override the default | |
| :meth:`~transformers.PretrainedConfig.to_dict`. | |
| Returns: | |
| :obj:`Dict[str, any]`: Dictionary of all the attributes that make up this configuration instance, | |
| """ | |
| output = copy.deepcopy(self.__dict__) | |
| output["text_config"] = self.text_config.to_dict() | |
| output["vision_config"] = self.vision_config.to_dict() | |
| output["model_type"] = self.__class__.model_type | |
| return output | |