```
{
_id:"1",
"project_id":"1",
"Name":"A",
"type":{
 "user":[a,b,c]
}
}

{
_id:"2",
"Name":"A",
"project_id":"2",
"type":{
 "user":[b]
}
}

{
_id:"3",
"Name":"A",
"project_id":"1",
"type":{
 "user":[a]
}
}

{
 _id:"4",
"Name":"A",
"project_id":"3",
"type":{
 "user":[a,b,c]
}
}

```

Above is the collection "Project" where it has a embedded document called "type" which has an array "user"
i want to write a mongodb query which gets me the documents for the "project\_id":"1" and for the value "a" in "user" array