class_docstr: Specialization that Converts fixed-width fields into DataFrames.
  See PythonParser for details.
docstr: Returns the list of lines without the empty ones. With fixed-width
  fields, empty lines become arrays of empty strings.
  
  See PythonParser._remove_empty_lines.
docstr_tok: ["Returns","the","list","of","lines","without","the","empty","ones",".","With","fixed-width","fields",",","empty","lines","become","arrays","of","empty","strings",".","See","PythonParser._remove_empty_lines","."]
code: def _remove_empty_lines(self, lines: list[list[T]]) -> list[list[T]]:
      """
      Returns the list of lines without the empty ones. With fixed-width
      fields, empty lines become arrays of empty strings.
  
      See PythonParser._remove_empty_lines.
      """
      return [
          line
          for line in lines
          if any(not isinstance(e, str) or e.strip() for e in line)
      ]
  
imports: from __future__ import annotations
  from collections import abc, defaultdict
  import csv
  from io import StringIO
  import re
  from typing import IO, TYPE_CHECKING, DefaultDict, Literal, cast
  import warnings
  import numpy
  from pandas._libs import lib
  from pandas.errors import EmptyDataError, ParserError, ParserWarning
  from pandas.util._decorators import cache_readonly
  from pandas.util._exceptions import find_stack_level
  from pandas.core.dtypes.common import is_bool_dtype, is_integer, is_numeric_dtype
  from pandas.core.dtypes.inference import is_dict_like
  from pandas.io.common import dedup_names, is_potential_multi_index
  from pandas.io.parsers.base_parser import ParserBase, parser_defaults
label_desc: Use image node_id 3 for calling the FixedWidthFieldParser obj's underlying member method code with example usage: obj._remove_empty_lines(lines) and returns: unknown