How to use 'how to concatenate two tuples in python' in Python

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def join_consecutive_tuples(tuples):
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    for i in range(len(tuples) - 1):
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        curr_type = tuples[i][1]
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        curr_end_idx = tuples[i][2][1]
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        next_type = tuples[i + 1][1]
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        next_start_idx = tuples[i + 1][2][0]
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        if curr_type == next_type and curr_end_idx == next_start_idx - 1:
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            curr_word = tuples[i][0]
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            next_word = tuples[i + 1][0]
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            curr_start_idx = tuples[i][2][0]
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            next_end_idx = tuples[i + 1][2][1]
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            tuples[i + 1] = (curr_word + ' ' + next_word,
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                             curr_type,
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                             [curr_start_idx, next_end_idx])
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            tuples[i] = ()
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    tuples = [t for t in tuples if t]
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    return tuples