yaml_opt_bash_env() {
    local prefix="$1" key value
    while read-0 key value; do
        new_prefix="${prefix}_${key^^}"
        if [[ "$(echo "$value" | shyaml get-type)" == "struct" ]]; then
            echo "$value" | yaml_opt_bash_env "${new_prefix}"
        else
            printf "%s\0%s\0" "${new_prefix/-/_}" "$value"
        fi
    done < <(shyaml key-values-0)
}

yaml_opt_bash_env_ignore_first_level() {
    local prefix="$1" key value
    while read-0 key value; do
        new_prefix="${prefix}_${key^^}"
        if [[ "$(echo "$value" | shyaml get-type)" == "struct" ]]; then
            echo "$value" | yaml_opt_bash_env "${new_prefix}"
        fi
    done < <(shyaml key-values-0)
}