def _well_col_from_well(well: str) -> str:
  """Parses the column from the well name.

  This function currently assumes the column the end of the well name,
  e.g. "10" is the column for well "A10". If you are using something other than
  a standard 96 or 384 well plate, you will need to change this.

  Args:
    well: The string name of the well, e.g. "A10"

  Returns:
    The string indicating the column of the well, e.g. "10".
  """
  return well[1:]