file:
- name: file1.proto
syntax: proto3
package: bar
messageType:
- name: Foo
- name: dep.proto
syntax: proto3
messageType:
- name: Foo
- name: file2.proto
syntax: proto3
package: bar
dependency:
- dep.proto
messageType:
- name: Bar
field:
- name: foo
number: 1
label: LABEL_OPTIONAL
type: TYPE_MESSAGE
typeName: Foo