Function cef_v8_value_create_function 

pub unsafe extern "C" fn cef_v8_value_create_function(
    name: *const cef_string_t,
    handler: *mut cef_v8_handler_t,
) -> *mut cef_v8_value_t

Create a new cef_v8_value_t object of type function. This function should only be called from within the scope of a cef_render_process_handler_t, cef_v8_handler_t or cef_v8_accessor_t callback, or in combination with calling enter() and exit() on a stored cef_v8_context_t reference.