syntax = "proto3";

package foo;
option php_namespace = "";
option php_metadata_namespace = "";

message TestEmptyNamespace {
  int32 a = 1;

  // Test nested messages, enums, and reserved names
  NestedMessage nested_message = 2;
  NestedEnum nested_enum = 3;
  message NestedMessage {
    int32 a = 1;
  }
  enum NestedEnum {
      ZERO = 0;
  };
}