Write a SpacetimeDB backend module in C# that defines a table and these five empty reducers.

TABLES
- EmptyTable
  - Struct: EmptyTable
  - Fields:
    - Id: int (primary key)

REDUCERS
- EmptyReducer_NoArgs: no arguments, returns void, empty body
- EmptyReducer_WithInt: (int count), returns void, empty body
- EmptyReducer_WithString: (string name), returns void, empty body
- EmptyReducer_WithTwoArgs: (int count, string name), returns void, empty body
- EmptyReducer_WithThreeArgs: (bool active, float ratio, string label), returns void, empty body