new_contents: import jax
  import flax
  import numpy as np
  from jax import numpy as jnp
  from typing import Union
  from typing import Callable
  from typing import Set
  
  
  @flax.struct.dataclass
  class IntermediateGammaScalar:
      value: float
      min_val: float = flax.struct.field(pytree_node=False)
      max_val: float = flax.struct.field(pytree_node=False)
      entities: jnp.array = flax.struct.field(pytree_node=False)
      is_linear: bool = flax.struct.field(pytree_node=False)
      generative_func: Callable = flax.struct.field(pytree_node=False)
  
      # TODO: fix circular import
      def __add__(self, other: Union[GammaScalar, "IntermediateGammaScalar"]) -> "IntermediateGammaScalar":
          value = self.value + other.value
          min_val = self.min_val + other.min_val
          max_val = self.max_val + other.max_val
  
          if isinstance(other, GammaScalar):
              new_entities = jnp.append(self.entities, other.entity)
          else:
              new_entities = jnp.concatenate([self.entities, other.entities])
  
          return IntermediateGammaScalar(value=value, min_val=min_val, max_val=max_val, entities=new_entities,
                                         is_linear=True, generative_func=None)
  
  @flax.struct.dataclass
  class GammaScalar:
      value: float
      min_val: float = flax.struct.field(pytree_node=False)
      max_val: float = flax.struct.field(pytree_node=False)
      entity: int = flax.struct.field(pytree_node=False)
      is_linear: bool = flax.struct.field(pytree_node=False)
  
      def __add__(self, other: "GammaScalar") -> Union["GammaScalar", "IntermediateGammaScalar"]:
          new_min = self.min_val + other.min_val
          new_max = self.max_val + other.max_val
          new_value = self.value + other.value
          new_entities = jnp.array((self.entity, other.entity))
          return IntermediateGammaScalar(value=new_value, min_val=new_min, max_val=new_max, entities=new_entities,
                                         is_linear=True, generative_func=None)
  
  
  
subject: Save progress