Implementation of test task for Juno company

1. set name, value - set value for string type

   1. str type - set value
   2. list type (resize list to uint(value))

2. set name, key, value - set value to:

   1. str type (ErrInvalidType)
   2. dict type (name[key] = value)
   3. list type (name[int(key)] = value)

3. get name - get key value for any type

   1. str type - get value
   2. dict type - dict size
   3. list type - list size

4. push name, value - push key value to list type

5. pop name - pop key value from list type

6. keys - list of all keys 1 keys name - keys of dict 'name'

7. ttl name, milliseconds - set TTL value for key from now

8. remove name - remove name from cache

9. remove name, key - remove key from name

   1. dict type - remove name[key]
   2. list type - name[int(key)] = ''