def __init__(self, token_list):
        '''
        Initialize.
        
        Args:
            token_list:    The list of all tokens.
        '''
        self.__token_arr = np.array(list(set(token_list)))
def __init__ ( self , token_list ) : self . __token_arr = np . array ( list ( set ( token_list ) ) )
Initialize.
        
        Args:
            token_list:    The list of all tokens.