code: def fromFile(cls, filename):
  		
  
  		# Load the file
  		oFile = open(filename)
  
  		# Convert it to a dictionary
  		dDetails = JSON.decodef(oFile)
  
  		# Create and return the new instance
  		return cls(dDetails)
docs: From File
  
  		Loads a JSON file and creates a Node instance from it
  
  		Args:
  			filename (str): The filename to load
  
  		Returns:
  			_NodeInterface