Function ggml_custom_inplace 

pub unsafe extern "C" fn ggml_custom_inplace(
    ctx: *mut ggml_context,
    a: *mut ggml_tensor,
    args: *mut *mut ggml_tensor,
    n_args: c_int,
    fun: ggml_custom_op_t,
    n_tasks: c_int,
    userdata: *mut c_void,
) -> *mut ggml_tensor