| decode_links | Decode short links | 
| dir_create | Create new directory | 
| extract_images | Extract and save images | 
| get_pics | Clean Twitter timeline and get images | 
| get_twitter | Get Twitter Timeline | 
| image_read_fn | Read and scale images | 
| make_blanks | if images are missing or column count is off, build blanks | 
| make_collage | Make a collage of images from Twitter timeline | 
| make_column | build the image columns to be collaged | 
| run_btm | Run Biterm Topic Models | 
| tm_clean_tweets | Cleaning Tweets for Topic Modeling | 
| twitter_tm | Get Twitter Timeline, Mentions and Topic Models | 
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