@interface SNOperatorUtils : NSObject + (BOOL)checkOperatorEventIsValidGivenInput:(id)a0 terminationError:(id)a1; + (id /* block */)downstreamHandlerForwardingToOther:(id /* block */)a0 portID:(id)a1; + (id /* block */)ignoreDownstreamHandler; + (BOOL)sendEventToDownstreamHandler:(id /* block */)a0 toPortID:(id)a1 input:(id)a2 terminationError:(id)a3 throughOptionalOperator:(id)a4 operatorPortID:(id)a5 error:(id *)a6; + (BOOL)sendEventToOperator:(id)a0 portID:(id)a1 input:(id)a2 terminationError:(id)a3 downstreamHandler:(id /* block */)a4 error:(id *)a5; + (BOOL)validateOperatorEventIsValidGivenInput:(id)a0 terminationError:(id)a1 error:(id *)a2; - (id)init; @end