##### SUMMARY
group contains call to Display.deprecated or AnsibleModule.deprecate and is scheduled for removal

```
b/ansible/inventory/group.py:54:20: ansible-deprecated-version: Deprecated version ('2.10') found in call to Display.deprecated or AnsibleModule.deprecate
```

##### ISSUE TYPE
 - Bug Report

##### COMPONENT NAME
```
b/ansible/inventory/group.py
```

##### ANSIBLE VERSION
```
2.10
```

##### CONFIGURATION
N/A

##### OS / ENVIRONMENT
N/A

##### STEPS TO REPRODUCE
N/A

##### EXPECTED RESULTS
N/A

##### ACTUAL RESULTS
N/A

''' a group of ansible hosts '''
    
    def __init__(self, name=None):
        self.depth = 0
        self.name = to_safe_group_name(name)
        self.hosts = []
        self._hosts = None
        self.vars = {}
        self.child_groups = []
        self.parent_groups = []
        self._hosts_cache = None
        self.priority = 1
    def __repr__(self):