code: def matlab_compatible(name):
      
  
      compatible_name = [ch if ch in ALLOWED_MATLAB_CHARS else "_" for ch in name]
      compatible_name = "".join(compatible_name)
  
      if compatible_name[0] not in string.ascii_letters:
          compatible_name = "M_" + compatible_name
  
      # max variable name is 63 and 3 chars are reserved
      # for get_unique_name in case of multiple channel name occurence
      return compatible_name[:60]
docs: make a channel name compatible with Matlab variable naming
  
      Parameters
      ----------
      name : str
          channel name
  
      Returns
      -------
      compatible_name : str
          channel name compatible with Matlab