class_docstr: A simple timer.
class_docstr_tok: ["A","simple","timer","."]
docstr: Returns the elapsed time in milliseconds.
docstr_tok: ["Returns","the","elapsed","time","in","milliseconds","."]
code: def elapsed_ms(self) -> float:
      """Returns the elapsed time in milliseconds."""
      return (self.end_time - self.start_time) * 1000
  
file_path: tf-quant-finance/tf_quant_finance/examples/demos/option_pricing_basic/pricer/app/pricers.py
imports: import datetime
  import time
  import numpy
  import tensorflow
  import tf_quant_finance
label_desc: Use image node_id 4 for calling the Timer obj's underlying member method code with example usage: obj.elapsed_ms() and returns: unknown