Method check

crates/vm/src/protocol/sequence.rs:138–140

(&self)

    }

    pub fn check(&self) -> bool {
        self.slots().has_item()
    }

    pub fn length_opt(self, vm: &VirtualMachine) -> Option<PyResult<usize>> {
        self.slots().length.load().map(|f| f(self, vm))