warning: unused import "heavy1.proto"
  --> heavy2.proto:4:8
   |
 4 | import "heavy1.proto";
   |        ^^^^^^^^^^^^^^
  help: delete it
   |
 4 | - import "heavy1.proto";
   |
   = help: no symbols from this file are referenced

warning: unused import "lite1.proto"
  --> heavy2.proto:5:8
   |
 5 | import "lite1.proto";
   |        ^^^^^^^^^^^^^
  help: delete it
   |
 5 | - import "lite1.proto";
   |
   = help: no symbols from this file are referenced

warning: unused import "heavy1.proto"
  --> lite1.proto:6:8
   |
 6 | import "heavy1.proto";
   |        ^^^^^^^^^^^^^^
  help: delete it
   |
 6 | - import "heavy1.proto";
   |
   = help: no symbols from this file are referenced

warning: unused import "lite1.proto"
  --> lite2.proto:6:8
   |
 6 | import "lite1.proto";
   |        ^^^^^^^^^^^^^
  help: delete it
   |
 6 | - import "lite1.proto";
   |
   = help: no symbols from this file are referenced

encountered 4 warnings
