检查字典列表中是否存在值

Question

我有一本字典，上面有字典列表。我该如何查找以检查键“ firstname”中是否存在某个名称？

---
 - hosts: localhost
  
   vars:
     Persons:
       - firstname: Bob
       - firstname: Sarah

     name: Sarah

   tasks:
    - debug: msg="{{ name in Persons }}" - ????

Answer 1

在另一则帖子中找到了答案-

- debug: msg="{{ name in Persons | map(attribute='firstname') | list }}"