class_docstr: Special dictionary object that can handle dict operations based on dataset name, wavelength, or DataID.
  
  Note: Internal dictionary keys are `DataID` objects.
class_docstr_tok: ["Special","dictionary","object","that","can","handle","dict","operations","based","on","dataset","name",",","wavelength",",","or","DataID",".","Note",":","Internal","dictionary","keys","are","`","DataID","`","objects","."]
docstr: Get Node when we know the *exact* DataID.
docstr_tok: ["Get","Node","when","we","know","the","*","exact","*","DataID","."]
code: def getitem(self, item):
      """Get Node when we know the *exact* DataID."""
      return super(DatasetDict, self).__getitem__(item)
  
file_path: satpy/satpy/dataset/data_dict.py
imports: import numpy
  from .dataid import DataID, create_filtered_query, minimal_default_keys_config
label_desc: Use image node_id 3 for calling the DatasetDict obj's underlying member method code with example usage: obj.getitem(item) and returns: super