transformers

da36c557 - Add ImageGPT (#14240)

Add ImageGPT (#14240) * First draft * More improvements * Improve conversion script * Fix init weights for layer norm * Fix correct model for conversion script * Don't tie input and output embeddings * Add print statements for debugging * Add print statements for debugging * Fix vocab size of model * Improve documentation, remove fast tokenizer * Add ImageGPTForImageClassification, improve docs * Fix docs issue * Set verbosity level back to info * Improve tests * Fix tests and add figure * Delete tokenizer file * Remove ImageGPTTokenizer from init files * Remove ImageGPTLayer from init files * Remove ImageGPT tokenizer from docs * First draft of ImageGPTFeatureExtractor * Fix typo * Fix bug * More improvements * Apply suggestions from code review, add tests for feature extractor * Fix layernorm * Update save_pretrained method * Fix issue * Make all tests of ImageGPTFeatureExtractor pass * Update code examples * Rename model inputs to pixel_values * Improve code examples * Update init_weights to post_init * Fix post_init