user: I want to find out the age rating for the movie 'Barbie' released in 2023. I have an API key 'YOUR-OMDB-API-KEY' for the OMDB API. How can I get this information?

Available functions:
name: requests.get
description: Sends a GET request to the specified URL.
parameters: type: dict
properties: url: type: string
description: Fetches the age rating of a movie from the OMDB API.
default: http://www.omdbapi.com/
headers: type: dict
timeout: type: integer
description: How many seconds to wait for the server to send data before giving up.
params: properties: i: type: string
description: A valid IMDb ID (e.g., tt1285016).
t: type: string
description: Movie title to search for.
type: type: string
description: Type of result to return. Valid options are 'movie', 'series', and 'episode'.
y: type: string
description: Year of release.
plot: type: string
description: Return short or full plot. Default is 'short'.
r: type: string
description: The data type to return. Default is 'json'.
callback: type: string
description: JSONP callback name.
v: type: integer
description: API version (reserved for future use). Default is 1.
apikey: type: string
description: API Key provided for this API
type: dict
allow_redirects: type: boolean
description: A Boolean to enable/disable redirection.
default: yes
auth: type: tuple
description: A tuple to enable a certain HTTP authentication.
default: None
items: type: string
cert: type: string
description: A String or Tuple specifying a cert file or key.
default: None
cookies: type: dict
additionalProperties: type: string
description: Dictionary of cookies to send with the request.
proxies: type: dict
additionalProperties: type: string
description: Dictionary of the protocol to the proxy url.
stream: type: boolean
description: A Boolean indication if the response should be immediately downloaded (False) or streamed (True).
default: no
verify: type: string
description: A Boolean or a String indication to verify the servers TLS certificate or not.
default: yes
required: url