1Error: Concurrent function should only use import variable or local variable, 'b' is not one of them [sendable-class-constructor-contains-lexical-variable.js:22:16] 2the size of programs is expected to be 1, but is 0 3
1Error: Concurrent function should only use import variable or local variable, 'b' is not one of them [sendable-class-constructor-contains-lexical-variable.js:22:16] 2the size of programs is expected to be 1, but is 0 3