ReaderSig

Abstract type that must be used in definitions of effect's operations.

From the perspective of effect's user, !@! is just an alias of !!. The final-override happens in Effect.

From the perspective of handler, !@! definition is enriched in a way depending on the chosen Interpreter.

Abstract type that must be used in definitions of effect's operations.

From the perspective of effect's user, ThisEffect is just an alias of this.type. The final-override happens in Effect.

From the perspective of handler, ThisEffect definition is enriched in a way depending on the chosen Interpreter.