<commit_before>shared interface Empty
           satisfies Correspondence<Natural, Bottom> & 
                     Sized & Ordered<Bottom> {
    
    shared actual Natural size { 
        return 0; 
    }
    shared actual Boolean empty { 
        return true; 
    }
    shared actual Nothing iterator {
        return null;
    }
    shared actual Nothing item(Natural key) {
        return null;
    }
    shared actual Nothing first {
        return null;
    }
    
}<commit_msg>make Empty extend Ranged<commit_after>shared interface Empty
           satisfies Correspondence<Natural, Bottom> & 
                     Sized & Ordered<Bottom> & 
                     Ranged<Empty> {
    
    shared actual Natural size { 
        return 0; 
    }
    shared actual Boolean empty { 
        return true; 
    }
    shared actual Nothing iterator {
        return null;
    }
    shared actual Nothing item(Natural key) {
        return null;
    }
    shared actual Nothing first {
        return null;
    }
    
    shared actual Empty segment(Natural from, Natural length) {
        return this;
    }
    
    shared actual Empty span(Natural from, Natural to) {
        return this;
    }
    
}
{'fraction_non_alphanumeric': 0.06073211314475874, 'fraction_numerical': 0.0016638935108153079, 'mean_word_length': 1.6733333333333333, 'pattern_counts': {'":': 0, '<': 8, '<?xml version=': 0, '>': 8, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '2972851', 'n_tokens_mistral': 334, 'n_tokens_neox': 299, 'n_words': 100}