only add metadata when k_sched is actually been used

from typing import Any, Dict, List

import modules.sd_hijack

from modules import devices, prompt_parser, masking, sd_samplers, lowvram, generation_parameters_copypaste, extra_networks, sd_vae_approx, scripts, sd_samplers_common

from modules import devices, prompt_parser, masking, sd_samplers, lowvram, generation_parameters_copypaste, extra_networks, sd_vae_approx, scripts, sd_samplers_common, sd_samplers_kdiffusion

from modules.sd_hijack import model_hijack

from modules.shared import opts, cmd_opts, state

import modules.shared as shared

    if uses_ensd:

        uses_ensd = sd_samplers_common.is_sampler_using_eta_noise_seed_delta(p)

    use_custom_k_sched = p.enable_custom_k_sched and p.sampler_name in sd_samplers_kdiffusion.k_diffusion_samplers_map

    generation_params = {

        "Steps": p.steps,

        "Sampler": p.sampler_name,

        "Enable Custom Karras Schedule": p.enable_custom_k_sched or None,

        "kdiffusion Scheduler Type": p.k_sched_type if p.enable_custom_k_sched else None,

        "kdiffusion Scheduler sigma_max": p.sigma_max if p.enable_custom_k_sched else None,

        "kdiffusion Scheduler sigma_min": p.sigma_min if p.enable_custom_k_sched else None,

        "kdiffusion Scheduler rho": p.rho if p.enable_custom_k_sched else None,

        "Enable Custom Karras Schedule": use_custom_k_sched or None,

        "kdiffusion Scheduler Type": p.k_sched_type if use_custom_k_sched else None,

        "kdiffusion Scheduler sigma_max": p.sigma_max if use_custom_k_sched else None,

        "kdiffusion Scheduler sigma_min": p.sigma_min if use_custom_k_sched else None,

        "kdiffusion Scheduler rho": p.rho if use_custom_k_sched else None,

        "CFG scale": p.cfg_scale,

        "Image CFG scale": getattr(p, 'image_cfg_scale', None),

        "Seed": all_seeds[index],