CmdID / az / az network / az network firewall / az network firewall policy / az network firewall policy rule-collection-group
az network firewall policy rule-collection-group collection
Manage and configure Azure firewall policy rule collections in the rule collection group. Azure CLI extensions reference
Currently, Azure Firewall policy support two kinds of rule collections which are Filter collection and NAT collection. There are three kinds of rules which are application rule, network rule and nat rule. NAT collection support having a list of nat rule. Filter collection support including a list of rules(network rule or application rule) in it. But all of rules should be the same type.
2 commands Its page in the Azure CLI extensions reference