Not getting data based on child node from query method

[nitishsati82]

document data

{
   "family":[
      {
         "familyId":"123",
         "children":[
            {
               "childId":"123-1"
              
            }
         ]
      }
}

@Repository public interface FamilyRepository extends CosmosRepository<Family, String>{ List<Family> findByFamilyIdChildrenChildId(String familyId,String childId); }

I am getting a blank list while using the above method to fetch the data.

pom depedency:-

com.azure.spring
azure-spring-boot-starter-cosmos
3.1.0