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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def search_texts(args, parser):
 """Searches texts for presence of n-grams."""

    store = utils.get_data_store(args)
    corpus = utils.get_corpus(args)
    catalogue = utils.get_catalogue(args)
    store.validate(corpus, catalogue)
    ngrams = []
    for ngram_file in args.ngrams:
        ngrams.extend(utils.get_ngrams(ngram_file))
    store.search(catalogue, ngrams, sys.stdout)