Cluster node status are not correct

[jainpratik163]

From K8s version 1.16v onwards roles of nodes are not coming and due to this below code output is coming as zero

 echo -e "\e[1m\e[39mCluster Node Status:\e[21m"
        echo -e "${BLUE}"ALL Nodes"                      :${GREEN}$nodes"
        echo -e "${BLUE}"Worker Nodes"                   :${GREEN}$worker"
        echo -e "${BLUE}"Master Nodes"                   :${GREEN}$master"
        echo -e "${BLUE}"Nodes Status"                   :${GREEN}$node_status"

output
Cluster Node Status: ALL Nodes :19 Worker Nodes :0 Master Nodes :0 Nodes Status :Ready