class_docstr: Base class of solver.
class_docstr_tok: ["Base","class","of","solver","."]
code: def __init__(self, config):
      super().__init__()
      self._config = self.process_config(config)
      self._task = None
  
imports: import abc
  import math
  import delta.compat
  import tensorflow_addons
  from absl import logging
  from delta import utils
  from delta.utils import optimizer
  from delta.utils.register import registers
label_desc: Use image node_id 1 to create a new Solver object from inherited base classes: ABCSolver with example: obj = Solver(config)