Function elements_psbt_output_is_fee

bitcoin/psbt.c:1102–1107

}

bool elements_psbt_output_is_fee(const struct wally_psbt *psbt, size_t outnum)
{
    assert(outnum < psbt->num_outputs);
    return chainparams->is_elements &&
        psbt->outputs[outnum].script_len == 0;
}

bool psbt_set_version(struct wally_psbt *psbt, u32 version)
{