| 1234567891011121314151617 | syntax = "proto2";// Message1Commentmessage Message1{    // LeadingMemberComment    required int32 member1 = 1;    required int32 member2 = 2; // TrailingMemberComment}// Enum1Commentenum Enum1{    // LeadingEnumComment    ENUMVAL1 = 1;    ENUMVAL2 = 2; // TrailingEnumComment}
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