Function world__send_messages 

pub unsafe extern "C" fn world__send_messages(
    message_struct_size: u32,
    range_and_receiever_ptr: *const MessageRangeAndReceiver,
    range_and_receiever_len: u32,
    messages_ptr: *const Message,
    messages_len: u32,
)

message_struct_size is the size of the module struct to sanity check size and have a fallback for older modules if possible. range_and_receiever contains a destination entity and a range of messages to be grabbed from messagesand put into the inbox of the destination entity. messages is a slice of messages range_and_receiver points into.