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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_ccle_lines_for_mutation(gene, amino_acid_change):
 """Return cell lines with a given point mutation in a given gene. Checks which cell lines in CCLE have a particular point mutation in a given gene and return their names in a list. Parameters gene : str The HGNC symbol of the mutated gene in whose product the amino acid change occurs. Example: "BRAF" amino_acid_change : str The amino acid change of interest. Example: "V600E" Returns ------- cell_lines : list A list of CCLE cell lines in which the given mutation occurs. """

    data = {'cmd': 'getMutationData',
            'case_set_id': ccle_study,
            'genetic_profile_id': ccle_study + '_mutations',
            'gene_list': gene,
            'skiprows': 1}
    df = send_request(**data)
    df = df[df['amino_acid_change'] == amino_acid_change]
    cell_lines = df['case_id'].unique().tolist()
    return cell_lines