Lists all the security configurations visible to this account, providing their creation dates and times, and their names. This call returns a maximum of 50 clusters per call, but returns a marker to track the paging of the cluster list across multiple ListSecurityConfigurations calls.
emr_list_security_configurations(Marker)
The pagination token that indicates the set of results to retrieve.
svc$list_security_configurations( Marker = "string" )