Add variable value to string

[pythonlearner1]

I am creating variable

dashboard_id="66862fa0-dafa-4d28572533a"

I want to create a another variable and insert this value to it

Output:
{ "objects":[
   {
 "type":"dashboard",
 "id":"66862fa0-dafa-4d28572533a"
 } ] ,
 "includeReferencesDeep": true
}

this is how i am creating this but do not know how to replace this id

data = '\n{ "objects":[\n   {\n "type":"dashboard",\n "id":"66862fa0-dafa-4d28572533a"\n } ] ,\n "includeReferencesDeep": true\n}'