code: def get_empty_string(self, length, decimals):
      return " " * (length - 2 - decimals) + "-." + "-" * decimals
  
file_path: labml/client/labml/internal/tracker/writers/screen.py
imports: from typing import Dict
  import numpy
  from labml.logger import Text
  from ..None import Writer, Indicator
  from ..indicators import numeric
label_desc: Use image node_id 3 for calling the ScreenWriter obj's underlying member method code with example usage: obj.get_empty_string(length, decimals) and returns: unknown