Private/Get-SshImportIdConfigPath.ps1

function Get-SshImportIdConfigPath {
    <#
    .SYNOPSIS
        Returns the path to the persisted custom-source config file.
    #>

    [CmdletBinding()]
    [OutputType([string])]
    param()

    Join-Path -Path $env:APPDATA -ChildPath 'SshImportId\sources.psd1'
}