code: def get_ccle_lines_for_mutation(gene, amino_acid_change):
      
      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
docs: 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.