docstr: (Yet another) progress bar.
  
  Args:
    target: int.
      Total number of steps expected.
    width: int.
      Width of progress bar.
    interval: float.
      Minimum time (in seconds) for progress bar to be displayed
      during updates.
    verbose: int.
      Level of verbosity. 0 suppresses output; 1 is default.
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code: def __init__(self, target, width=30, interval=0.01, verbose=1):
      """(Yet another) progress bar.
  
      Args:
        target: int.
          Total number of steps expected.
        width: int.
          Width of progress bar.
        interval: float.
          Minimum time (in seconds) for progress bar to be displayed
          during updates.
        verbose: int.
          Level of verbosity. 0 suppresses output; 1 is default.
      """
      self.target = target
      self.width = width
      self.interval = interval
      self.verbose = verbose
  
      self.stored_values = {}
      self.start = time.time()
      self.last_update = 0
      self.total_width = 0
      self.seen_so_far = 0
  
file_path: edward/edward/util/progbar.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import numpy
  import six
  import sys
  import time
label_desc: Use image node_id 1 to create a new Progbar object from inherited base classes: object with example: obj = Progbar(target, width, interval, verbose)