code: def load_genomic_CDR3_anchor_pos_and_functionality(anchor_pos_file_name):
      
      
      anchor_pos_and_functionality = {}
      anchor_pos_file = open(anchor_pos_file_name, 'r')
      
      first_line = True
      for line in anchor_pos_file:
          if first_line:
              first_line = False
              continue
          
          split_line = line.split(',')
          split_line = [x.strip() for x in split_line]
          anchor_pos_and_functionality[split_line[0]] = [int(split_line[1]), split_line[2].strip().strip('()')]
  
      return anchor_pos_and_functionality
docs: Read anchor position and functionality from file.
  
      Parameters
      ----------
      anchor_pos_file_name : str
          File name for the functionality and position of a conserved residue 
          that defines the CDR3 region for each V or J germline sequence.
          
      Returns
      -------
      anchor_pos_and_functionality : dict
          Residue anchor position and functionality for each gene/allele.