code: def pct(self):
      if self.finished:
          return 1.0
      return min(self.pos / (float(self.length) or 1), 1.0)
  
imports: import contextlib
  import math
  import os
  import sys
  import time
  from ._compat import _default_text_stdout
  from ._compat import CYGWIN
  from ._compat import get_best_encoding
  from ._compat import int_types
  from ._compat import isatty
  from ._compat import open_stream
  from ._compat import range_type
  from ._compat import strip_ansi
  from ._compat import term_len
  from ._compat import WIN
  from .exceptions import ClickException
  from .utils import echo
label_desc: Use image node_id 8 for calling the ProgressBar obj's underlying member method code with example usage: obj.pct() and returns: min, int