Function fexpr_set_fmpz_mpoly_q 

pub unsafe extern "C" fn fexpr_set_fmpz_mpoly_q(
    res: *mut fexpr_struct,
    frac: *const fmpz_mpoly_q_struct,
    vars: *const fexpr_vec_struct,
    ctx: *const fmpz_mpoly_ctx_struct,
)