Snowflake from Event

```
 event CoverageUpdate {
    String(4) supplierID;
    List<Coverage> coverages;
  }

  // zanima me lista timestampova ažuriranja za nekog suppliera
  snowflake<CoverageUpdate> CoverageUpdateView {
    supplierID;
    processedAt;
  }
```

Compiler javlja 
`
Object CoverageUpdate in module trading is of invalid type. Check required type for specified concept
`
