if defined for nested dict value

[rob]

Hi

I would like to check if nested dict value is defined, eg.:

when: ansible_local.resolver.resolver_override is not defined

But if ansible_local (fact.d) is not exists I get error message:

error while evaluating conditional: ansible_local.resolver.resolver_override is not defined

Is there any way to create condition if nested dict value is defined regardless of existence the whole dict hierarchy?