parameters: (self)
docstring: Initializes the register
docstring_summary: Initializes the register
docstring_tokens: Initializes the register
function: def __init__(self):
          """Initializes the register"""
          if not ExtensionRegister.instance:
              self.LoadDefault()
function_tokens: def __init__ ( self ) : if not ExtensionRegister . instance : self . LoadDefault ( )