class_docstr: Entry for density profile (dens), compared with CCSD calculation
class_docstr_tok: ["Entry","for","density","profile","(","dens",")",",","compared","with","CCSD","calculation"]
docstr: Parameters
  ----------
  e_type: str
  true_val: str
     must be a .npy file containing the pre-calculated density profile.
  systems: List[Dict]
docstr_tok: ["Parameters","--","--","--","--","--","e_type",":","str","true_val",":","str","must","be","a",".npy","file","containing","the","pre-calculated","density","profile",".","systems",":","List","[","Dict","]"]
code: def __init__(self, e_type, true_val, systems, weight):
      """
      Parameters
      ----------
      e_type: str
      true_val: str
         must be a .npy file containing the pre-calculated density profile.
      systems: List[Dict]
      """
      super().__init__(e_type, true_val, systems)
      self.true_val = true_val
      assert len(self.get_systems()) == 1
      self._grid: Optional[BaseGrid] = None
      self._weight = weight
  
imports: from __future__ import annotations
  from abc import abstractmethod, abstractproperty
  from typing import List, Dict, Optional
  import numpy
  from dqc.system.mol import Mol
  from dqc.system.base_system import BaseSystem
  from deepchem.utils.dftutils import KSCalc
  from deepchem.utils.dft_utils import parse_moldesc, BaseGrid
label_desc: Use image node_id 1 to create a new _EntryDens object from inherited base classes: DFTEntry with example: obj = _EntryDens(e_type, true_val, systems, weight)