Function gc_decref 

pub unsafe extern "C" fn gc_decref(
    context: *mut c_context,
    object: *const c_void,
) -> err

@brief Decrement the garbage collector reference counter for the given object

@deprecated We are phasing out the general nix_gc_decref() in favor of type-specified free functions, such as nix_value_decref().

We also provide typed nix_*_decref functions, which are

• safer to use
• easier to integrate when deriving bindings
• allow more flexibility

@param[out] context Optional, stores error information @param[in] object The object to stop referencing