Rego number of policies evaluated

Question

I am trying to validate some policies using the /opa/rego package.

The policies are evaluated as expected in this script. But, I also want to count the number of rules and the rule names evaluated as well.

I tried accessing the count and rule name as well using len(rego.ResultSet) But, though I am passing two rules, I am getting a count of one.

Here's part of Go script:

import (
        ...
        "github.com/open-policy-agent/opa/rego"
)

<snip>
    // Create Rego for query and evaluation
    regoQuery := rego.New(
        // Rego rule package
        // rego.Package("data.dockerfile_validation"),
        rego.Query("data.dockerfile_validation"),
        // rego policy file
            rego.Module("./policy/security.rego", string(regoPolicyCode)),
        rego.Input(inputData),
    )

    // Evaluate the Rego query
    rs, err := regoQuery.Eval(context.Background())

    // Get the number of policies evaluated by regoQuery
    fmt.Printf("Number of policies evaluated by regoQuery: %v\n", len(rs))

The rego policies I am passing are as follows:

    package dockerfile_validation

# Enforce a Base Image Prefix with Chainguard images:
untrusted_base_image {
    input[i].Cmd == "from"
    val := split(input[i].Value, "/")
    val[0] == "cgr.dev/chainguard/"  
}


# Avoid 'Latest' Tag for Base Images:
latest_base_image {
    input[i].Cmd == "from"
    val := split(input[i].Value[0], ":")
    not contains(lower(val[1]), "latest")
}

Can someone help me on this!