Gets a list of key groups.
See https://www.paws-r-sdk.com/docs/cloudfront_list_key_groups/ for full documentation.
cloudfront_list_key_groups(Marker = NULL, MaxItems = NULL)
Use this field when paginating results to indicate where to begin in
your list of key groups. The response includes key groups in the list
that occur after the marker. To get the next page of the list, set this
field's value to the value of NextMarker
from the current page's
response.
The maximum number of key groups that you want in the response.