::!{<property1>, <property2>, ...}
Property exclusion is useful when you want to return most properties but hide sensitive or unnecessary fields like passwords, internal IDs, or large data fields.
When using the SDKs or curling the endpoint, the query name must match what is defined in the queries.hx file exactly.

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Example 1: Excluding sensitive properties

QUERY GetPublicUserInfo () =>
    users <- N<User>::RANGE(0, 10)
    RETURN users::!{email, location}

QUERY CreateUser (name: String, age: U8, email: String, posts: U32, followers: U32, following: U32, location: String) =>
    user <- AddN<User>({
        name: name,
        age: age,
        email: email,
        posts: posts,
        followers: followers,
        following: following,
        location: location
    })
    RETURN user
Here’s how to run the query using the SDKs or curl 
from helix.client import Client

client = Client(local=True, port=6969)

users = [
    {
        "name": "Alice",
        "age": 25,
        "email": "alice@example.com",
        "posts": 42,
        "followers": 150,
        "following": 89,
        "location": "New York"
    },
    {
        "name": "Bob",
        "age": 30,
        "email": "bob@example.com",
        "posts": 28,
        "followers": 203,
        "following": 156,
        "location": "San Francisco"
    },
    {
        "name": "Charlie",
        "age": 28,
        "email": "charlie@example.com",
        "posts": 67,
        "followers": 89,
        "following": 234,
        "location": "London"
    }
]

for user in users:
    client.query("CreateUser", user)

result = client.query("GetPublicUserInfo", {})
print("Public user info (email and location excluded):", result)