code: def get_ccle_cna(gene_list, cell_lines):
      
      profile_data = get_profile_data(ccle_study, gene_list,
                                      'COPY_NUMBER_ALTERATION', 'all')
      profile_data = dict((key, value) for key, value in profile_data.items()
                          if key in cell_lines)
      return profile_data
docs: Return a dict of CNAs in given genes and cell lines from CCLE.
  
      CNA values correspond to the following alterations
  
      -2 = homozygous deletion
  
      -1 = hemizygous deletion
  
      0 = neutral / no change
  
      1 = gain
  
      2 = high level amplification
  
      Parameters
      ----------
      gene_list : list[str]
          A list of HGNC gene symbols to get mutations in
      cell_lines : list[str]
          A list of CCLE cell line names to get mutations for.
  
      Returns
      -------
      profile_data : dict[dict[int]]
          A dict keyed to cases containing a dict keyed to genes
          containing int