original_docstring: Given another Parameters instance, add any items that are not already
          present. Existing items will not be updated.
  
          parameters: Parameters - object from which to add parameters.
  
          Returns bool indicating whether or not any new items were added.
          
docstring: Given another Parameters instance, add any items that are not already
  present. Existing items will not be updated.
  
  object from which to add parameters.
  
  Returns bool indicating whether or not any new items were added.
docstring_tokens: Given another Parameters instance add any items that are not already present . Existing items will not be updated . object from which to add parameters . Returns bool indicating whether or not any new items were added .
code: def add_missing_items(self, parameters) -> bool:
          """Given another Parameters instance, add any items that are not already
          present. Existing items will not be updated.
  
          parameters: Parameters - object from which to add parameters.
  
          Returns bool indicating whether or not any new items were added.
          """
          updated = False
          existing_keys = self.keys()
          for key, val in parameters.entries():
              if key not in existing_keys:
                  self.add_entry(key, val)
                  updated = True
          return updated
code_tokens: def add_missing_items ( self , parameters ) -> bool : updated = False existing_keys = self . keys ( ) for key , val in parameters . entries ( ) : if key not in existing_keys : self . add_entry ( key , val ) updated = True return updated
short_docstring: Given another Parameters instance, add any items that are not already
  present.
short_docstring_tokens: Given another Parameters instance add any items that are not already present .
comment: """Given another Parameters instance, add any items that are not already
          present. Existing items will not be updated.
  
          parameters: Parameters - object from which to add parameters.
  
          Returns bool indicating whether or not any new items were added.
          """