code: def SpacesInsideBrackets( logical_line, tokens ):
    
    for index in range( len( tokens ) ):
      _, prev_text, _, prev_end, _ = ( tokens[ index - 1 ] if index - 1 >= 0 else
                                       ( None, None, None, None, None ) )
      token_type, text, start, end, _ = tokens[ index ]
      next_token_type, next_text, next_start, _, _ = (
        tokens[ index + 1 ] if index + 1 < len( tokens ) else
        ( None, None, None, None, None ) )
      if text in LEFT_BRACKETS:
        if ( next_text == CORRESPONDING_BRACKET[ text ] and
             next_start != end ):
          code = 'YCM204'
          message = ( ' no spaces between {} and {}'
                      ' for empty content'.format( text, next_text ) )
          yield end, code + message
        if ( next_token_type not in [ tokenize.NL, tokenize.NEWLINE ] and
             next_text != CORRESPONDING_BRACKET[ text ] and
             next_start and
             next_start[ 0 ] == start[ 0 ] and
             next_start[ 1 ] - start[ 1 ] != 2 ):
          code = 'YCM201'
          message = ' exactly one space required after {}'.format( text )
          yield end, code + message
      if text in RIGHT_BRACKETS:
        if ( prev_text != CORRESPONDING_BRACKET[ text ] and
             prev_end and
             prev_end[ 0 ] == end[ 0 ] and
             end[ 1 ] - prev_end[ 1 ] != 2 ):
          code = 'YCM202'
          message = ' exactly one space required before {}'.format( text )
          yield start, code + message
docs: Require spaces inside parentheses, square brackets, and braces for
    non-empty content.