Class: Informers::PretrainedMixin

Inherits:
Object
  • Object
show all
Defined in:
lib/informers/models.rb

Class Method Summary collapse

Class Method Details

.from_pretrained(pretrained_model_name_or_path, quantized: true, progress_callback: nil, config: nil, cache_dir: nil, local_files_only: false, revision: "main", model_file_name: nil) ⇒ Object 



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# File 'lib/informers/models.rb', line 17

def self.from_pretrained(
  pretrained_model_name_or_path,
  quantized: true,
  progress_callback: nil,
  config: nil,
  cache_dir: nil,
  local_files_only: false,
  revision: "main",
  model_file_name: nil
)
  options = {
    quantized:,
    progress_callback:,
    config:,
    cache_dir:,
    local_files_only:,
    revision:,
    model_file_name:
  }
  config = AutoConfig.from_pretrained(pretrained_model_name_or_path, **options)
  if options[:config].nil?
    # If no config was passed, reuse this config for future processing
    options[:config] = config
  end

  if !const_defined?(:MODEL_CLASS_MAPPINGS)
    raise Error, "`MODEL_CLASS_MAPPINGS` not implemented for this type of `AutoClass`: #{name}"
  end

  const_get(:MODEL_CLASS_MAPPINGS).each do |model_class_mapping|
    model_info = model_class_mapping[config[:model_type]]
    if !model_info
      next # Item not found in this mapping
    end
    return model_info[1].from_pretrained(pretrained_model_name_or_path, **options)
  end

  if const_defined?(:BASE_IF_FAIL)
    warn "Unknown model class #{config[:model_type].inspect}, attempting to construct from base class."
    PreTrainedModel.from_pretrained(pretrained_model_name_or_path, **options)
  else
    raise Error, "Unsupported model type: #{config[:model_type]}"
  end
end