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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 is_transformed(fastq):
 """ check the first 100 reads to see if a FASTQ file has already been transformed by umis """


    with open_fastq(fastq) as in_handle:
        for line in islice(in_handle, 400):
            if "UMI_" in line:
                return True
    return False