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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 get_codon(seq, codon_no, start_offset):
 """ This function takes a sequece and a codon number and returns the codon found in the sequence at that position """

    seq = seq.replace("-","")
    codon_start_pos = int(codon_no - 1)*3 - start_offset
    codon = seq[codon_start_pos:codon_start_pos + 3]
    return codon