class_docstr: Set hyper parameters by a step-based scheduler with linear decay values.
      
docstr: Linear decay scheduler of hyper parameter.
  Decay value linearly untill 0.
  
  Args:
      start_value (float): start value
      max_steps (int): maximum steps
code: def __init__(self, start_value, max_steps):
      """Linear decay scheduler of hyper parameter.
      Decay value linearly untill 0.
  
      Args:
          start_value (float): start value
          max_steps (int): maximum steps
      """
      assert max_steps > 0
      self.cur_step = 0
      self.max_steps = max_steps
      self.start_value = start_value
  
file_path: PARL/parl/utils/scheduler.py
imports: import six
label_desc: Use image node_id 1 to create a new LinearDecayScheduler object from inherited base classes: object with example: obj = LinearDecayScheduler(start_value, max_steps)