class_docstr: Track a series of values and provide access to smoothed values over a
  window or the global series average.
class_docstr_tok: ["Track","a","series","of","values","and","provide","access","to","smoothed","values","over","a","window","or","the","global","series","average","."]
code: def value(self):
      return self.deque[-1]
  
file_path: PaddleDetection/ppdet/utils/stats.py
imports: import collections
  import numpy
label_desc: Use image node_id 6 for calling the SmoothedValue obj's underlying member method code with example usage: obj.value() and returns: self