error: Non-unique topic name
 --> ui/double_topic.rs:6:9
  |
6 |         SomeData => i32, // Err
  |         ^^^^^^^^

error: Non-unique topic name
 --> ui/double_topic.rs:8:9
  |
8 |         SomeData2 => i32, // Err
  |         ^^^^^^^^^

error: Non-unique topic name
  --> ui/double_topic.rs:13:13
   |
13 |             SomeData3 => u32, // Err
   |             ^^^^^^^^^

error: Non-unique topic name
  --> ui/double_topic.rs:19:17
   |
19 |                 SomeData4 => u32, // Err
   |                 ^^^^^^^^^