code: def check_against_tables(chars, tables):
      
  
      for c in chars:
          if any(in_table(c) for in_table in tables):
              return c
  
      return None
docs: Perform a check against the table predicates in `tables`. `tables` must be
      a reusable iterable containing characteristic functions of character sets,
      that is, functions which return :data:`True` if the character is in the
      table.
  
      The function returns the first character occuring in any of the tables or
      :data:`None` if no character matches.