Explicitly return value in multiline calculated property in PowerShell

In PS, when using Select-Object, the -Property param "specifies the properties to select":

The value of the Property parameter can be a new calculated property. To create a calculated, property, use a hash table.

Valid keys are:

• Name: <string>
• Expression: <string> or <script block>

As an starting point, here's an anonymous object

$person = [pscustomobject]@{
    FirstName = "Kyle";
    LastName = "Mit"
}

The following calculated property works just fine:

$person | Select-Object 'FirstName', 'LastName', 
            @{
                Name="FullName";
                Expression= { "$($_.FirstName) $($_.LastName)" }
            }

Which correctly returns the following:

FirstName LastName FullName
--------- -------- --------
Kyle      Mit      Kyle Mit

However, I'm trying to build a calculated property that takes some complicated logic and requires multiple lines to implement. As soon as I have another return value inside the expression both values are returned.

So the following query will return FullName as { false, "Kyle Mit" }

$person | Select-Object 'FirstName', 'LastName', 
            @{
                Name="FullName";
                Expression= { 
                    "test" -eq "example"
                    return "$($_.FirstName) $($_.LastName)" 
                }
            }

Which returns the following:

FirstName LastName FullName         
--------- -------- --------         
Kyle      Mit      {False, Kyle Mit}

But I'm attempting to explicitly return just the last statement. Delimiting with ; or using return doesn't seem to help.

Any ideas?

Just toss out the unwanted expression result with Out-Null.:

$person | Select-Object 'FirstName', 'LastName',
             @{
                 Name="FullName";
                 Expression= {
                     "test" -eq "example" | out-null
                    return "$($_.FirstName) $($_.LastName)"
                 }
             }