Method contains

crates/vm/src/protocol/sequence.rs:396–411

(self, target: &PyObject, vm: &VirtualMachine)

    }

    pub fn contains(self, target: &PyObject, vm: &VirtualMachine) -> PyResult<bool> {
        if let Some(f) = self.slots().contains.load() {
            return f(self, target, vm);
        }

        let iter = self.obj.to_owned().get_iter(vm)?;
        let iter = iter.iter::<PyObjectRef>(vm)?;

        for elem in iter {
            let elem = elem?;
            if vm.bool_eq(&elem, target)? {
                return Ok(true);
            }
        }
        Ok(false)
    }
}