syntax = "proto3";
package message;

// An example resource type from AIP-123 used to test the behavior described in
// the CreateBookRequest message.
//
// See: https://google.aip.dev/123
message Book {
	// The resource name of the book.
	//
	// Format: `publishers/{publisher}/books/{book}`
	//
	// Example: `publishers/1257894000000000000/books/my-book`
	string name = 1;

	// Output only. The book's ID.
	required string id = 2;
	optional int32 stock = 3;
}