pub type PFN_vkFreeDescriptorSets = unsafe extern "system" fn(device: Device, descriptor_pool: DescriptorPool, descriptor_set_count: u32, p_descriptor_sets: *const DescriptorSet) -> Result;
pub type PFN_vkFreeDescriptorSets = unsafe extern "system" fn(device: Device, descriptor_pool: DescriptorPool, descriptor_set_count: u32, p_descriptor_sets: *const DescriptorSet) -> Result;