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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def trailing_blank_lines(physical_line, lines, line_number, total_lines):
 r"""Trailing blank lines are superfluous. Okay: spam(1) W391: spam(1)\n However the last line should end with a new line (warning W292). """

    if line_number == total_lines:
        stripped_last_line = physical_line.rstrip()
        if not stripped_last_line:
            return 0, "W391 blank line at end of file"
        if stripped_last_line == physical_line:
            return len(physical_line), "W292 no newline at end of file"