content: import os
  from dataclasses import dataclass, field
  
  from omegaconf import OmegaConf
  
  from .typing import *
  
  # ============ Register OmegaConf Recolvers ============= #
  OmegaConf.register_new_resolver("calc_exp_lr_decay_rate", lambda factor, n: factor ** (1.0 / n), replace=True)
  OmegaConf.register_new_resolver("add", lambda a, b: a + b, replace=True)
  OmegaConf.register_new_resolver("sub", lambda a, b: a - b, replace=True)
  OmegaConf.register_new_resolver("mul", lambda a, b: a * b, replace=True)
  OmegaConf.register_new_resolver("div", lambda a, b: a / b, replace=True)
  OmegaConf.register_new_resolver("idiv", lambda a, b: a // b, replace=True)
  OmegaConf.register_new_resolver("basename", lambda p: os.path.basename(p), replace=True)
  OmegaConf.register_new_resolver("rmspace", lambda s, sub: s.replace(" ", sub), replace=True)
  OmegaConf.register_new_resolver("tuple2", lambda s: [float(s), float(s)], replace=True)
  OmegaConf.register_new_resolver("gt0", lambda s: s > 0, replace=True)
  OmegaConf.register_new_resolver("not", lambda s: not s, replace=True)
  OmegaConf.register_new_resolver("shsdim", lambda sh_degree: (sh_degree + 1) ** 2 * 3, replace=True)
  # ======================================================= #
  
  # ============== Automatic Name Resolvers =============== #
  def get_naming_convention(cfg):
      # TODO
      name = f"tgs_{cfg.system.backbone.num_layers}"
      return name
  
  # ======================================================= #
  
  @dataclass
  class ExperimentConfig:
      n_gpus: int = 1
      data: dict = field(default_factory=dict)
      system: dict = field(default_factory=dict)
  
  def load_config(
      *yamls: str, cli_args: list = [], from_string=False, makedirs=True, **kwargs
  ) -> Any:
      if from_string:
          parse_func = OmegaConf.create
      else:
          parse_func = OmegaConf.load
      yaml_confs = []
      for y in yamls:
          conf = parse_func(y)
          extends = conf.pop("extends", None)
          if extends:
              assert os.path.exists(extends), f"File {extends} does not exist."
              yaml_confs.append(OmegaConf.load(extends))
          yaml_confs.append(conf)
      cli_conf = OmegaConf.from_cli(cli_args)
      cfg = OmegaConf.merge(*yaml_confs, cli_conf, kwargs)
      OmegaConf.resolve(cfg)
      assert isinstance(cfg, DictConfig)
      scfg: ExperimentConfig = parse_structured(ExperimentConfig, cfg)
  
      return scfg
  
  
  def config_to_primitive(config, resolve: bool = True) -> Any:
      return OmegaConf.to_container(config, resolve=resolve)
  
  
  def dump_config(path: str, config) -> None:
      with open(path, "w") as fp:
          OmegaConf.save(config=config, f=fp)
  
  
  def parse_structured(fields: Any, cfg: Optional[Union[dict, DictConfig]] = None) -> Any:
      scfg = OmegaConf.structured(fields(**cfg))
      return scfg
  