Simple flow = get_doc -> mapping -> new_doc

```mermaid
flowchart LR
get_doc --> map_fields --> new_doc
```

In the the properties sidebar:
- get_doc
  - doctype: "Sales Invoice"
  - docname: "Test 1"
- mapping
  - field1: "field_1"
  - field2: "field_2"
- new_doc