(choose from a number of pre-sorted options) takes a vector pair of toki1 / toki2 and a vector pair of res_token_i_1 / res_token_i_2 and chooses so that each 1st and exh 2nd value only is used where res_token_i_x identiefies already used items.

1 | ```
choose_options(toki1, toki2, res_token_i_1, res_token_i_2)
``` |

`toki1` |
first number of number pair to choose from |

`toki2` |
second number of number pair to choose from |

`res_token_i_1` |
already used first numbers |

`res_token_i_2` |
already used second numbers // @keywords internal |

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