Method length_opt

crates/vm/src/protocol/object.rs:694–698

(&self, vm: &VirtualMachine)

    }

    pub fn length_opt(&self, vm: &VirtualMachine) -> Option<PyResult<usize>> {
        self.sequence_unchecked()
            .length_opt(vm)
            .or_else(|| self.mapping_unchecked().length_opt(vm))
    }

    pub fn length(&self, vm: &VirtualMachine) -> PyResult<usize> {
        self.length_opt(vm).ok_or_else(|| {