Browse device tag (node ID & node name)

#Function Source code for browsing device tags from server.

#Function browse name (device tag and device tag name)
def browse_name(node):
    """ Internal function...
        THis function extracts the list of node available in a server. 
        By applying a proper if condition this can used to extract selective node type from server"""
    global varName, varNode
    for childId in node.get_children(): #iterates through every single node of parent class
        ch = client.get_node(childId) #gets the child node ID
        
      
        if str(ch.get_node_class()) == 'NodeClass.Object': #IF object node recursive as a parent node
            browse_name(ch)
        elif str(ch.get_node_class()) == 'NodeClass.Variable' and 'ns=' in str(ch): #Looks for variable node with namespace
            try:
                app=str(ch.get_browse_name()).replace("QualifiedName(","")
               
                
            
                papp=app.replace(')','')
                

                #print(ch.get_value(),"and",papp)

                
                
                varName.append(papp) #stores node name in a list
                varNode.append(ch) #stores node ID in a list
                #print(varNode[0].get_value())
              
                
                
            except ua.uaerrors._auto.BadWaitingForInitialData:
                pass
    
    return varName,varNode