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

```
lib/ansible/template/__init__.py:780:8: ansible-deprecated-version: Deprecated version ('2.13') found in call to Display.deprecated or AnsibleModule.deprecate
```

##### ISSUE TYPE
 - Bug Report

##### COMPONENT NAME
```
lib/ansible/template/__init__.py
```

##### ANSIBLE VERSION
```
2.13
```

##### CONFIGURATION
N/A

##### OS / ENVIRONMENT
N/A

##### STEPS TO REPRODUCE
N/A

##### EXPECTED RESULTS
N/A

##### ACTUAL RESULTS
N/A

from jinja2.runtime import Undefined
    if isinstance(item, MutableMapping):
        for key in item:
            recursive_check_defined(item[key])
    elif isinstance(item, list):
        for i in item:
            recursive_check_defined(i)
    else:
        if isinstance(item, Undefined):
            raise AnsibleFilterError("{0} is undefined".format(item))
def _is_rolled(value):
    """Helper method to determine if something is an unrolled generator,
    iterator, or similar object
    """
    return (
        isinstance(value, Iterator) or
        isinstance(value, MappingView) or
        isinstance(value, RANGE_TYPE)
    )
def _unroll_iterator(func):
    """Wrapper function, that intercepts the result of a filter
    and auto unrolls a generator, so that users are not required to
    explicitly use ``|list`` to unroll.
    """
    def wrapper(*args, **kwargs):