Australia decades from now will be ruled by a multi-racial, lesbian, part-cyborg president, One Nation leader Pauline Hanson has written.

The post-apocalyptic sci-fi prediction in the outspoken politician's book The Truth claims in 2050, the country of "Australasia" will be run by president Poona Li Hung.

Written in 1997, the extract was revived in the Federal Court to highlight the One Nation leader's alleged tendency to be racist as she tries to overturn a racial vilification finding.

"Ms Hung, a lesbian, is of multiracial descent, of Indian and Chinese background and was felt by the World Government to be a most suitable president," Senator Hanson wrote in her book.

"She is also part machine - the first cyborg president."

The text was raised by a lawyer for Greens senator Mehreen F

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