The 'Export ModuleMember' Problem

I have got a pretty nice solution to the "Export-ModuleMember" problem which my OCD often faces. Problem is, that the declaration of a function is separated from the "Export-ModuleMember" command, which makes a module harder to maintain, as you have to check the functions you export on every rename or addition/removal.

A soltion is to 'invent' an attribute in your psm1 file:

class InternalAttribute : System.Attribute {}

then apply it to every param block of the functions which you want to keep internal

function ConvertTo-QueryParameters {
    [Internal()]
    param( ... )
    ...
}

Now at the end of your .psm1 file, after loading all the functions, you can import only the functions without the attribute

Get-Command -Module $ExecutionContext.SessionState.Module 
| Where-Object { "Internal" -notin $_.ScriptBlock.Ast.Body.ParamBlock.Attributes.TypeName.FullName } 
| Export-ModuleMember