MobX 6: Can I serialize array of primitives?

[RusovVladimir]

I have a test. The test passes.

import { makeAutoObservable, toJS } from 'mobx';
import { serialize, update } from 'serializr';
import { persist } from 'mobx-persist';

class StoreOneItem {
  constructor(public name: string, public id: string) {
    makeAutoObservable(this);
  }
}

class StoreOne {
  constructor(
    public lines: string[], // mobx-persist can't serialize this
    public items: StoreOneItem[],
  ) {
    makeAutoObservable(this);
  }

  get linesCount(): number {
    return this.lines.length;
  }

  public setLines(lines: string[]) {
    this.lines = lines;
  }
}

const schema = {
  lines: false,
  items: {
    type: 'list',
    schema: {
      name: true,
      id: true,
    },
  },
};

persist(schema)(StoreOne);

it('save', () => {
  const targetStorage = new StoreOne(
    ['first', 'second'],
    [new StoreOneItem('item-1', 'item-1-id')],
  );

  expect(serialize(targetStorage)).toEqual({
    items: [
      {
        id: 'item-1-id',
        name: 'item-1',
      },
    ],
  });
});

Case 1. But, if I change schema to:

const schema = {
  lines: true,
  items: {
    type: 'list',
    schema: {
      name: true,
      id: true,
    },
  },
};

I'll get an error:

Error: [serializr] this value is not primitive: first,second

Case 2. Or if I change schema to:

const schema = {
  lines: {
    type: 'list',
    schema: true,
  },
  items: {
    type: 'list',
    schema: {
      name: true,
      id: true,
    },
  },
};

I'll get another error:

 [serializr] No modelschema provided. If you are importing it from another file be aware of circular dependencies.

Can I serialize array of primitives?

Package versions:

"mobx": "6.0.1",
 "mobx-persist": "^0.4.1",
"version": "1.5.4"