ConvertTo-Expression

The ConvertTo-Expression cmdlet converts (serializes) an object to a
PowerShell expression. The object can be stored in a variable,  file or
any other common storage for later use or to be ported to another
system.

An expression can be restored to an object using the native
Invoke-Expression cmdlet:

   $Object = Invoke-Expression ($Object | ConverTo-Expression)

Or Converting it to a [ScriptBlock] and invoking it with cmdlets
along with Invoke-Command or using the call operator (&):

   $Object = &([ScriptBlock]::Create($Object | ConverTo-Expression))

An expression that is stored in a PowerShell (.ps1) file might also
be directly invoked by the PowerShell dot-sourcing technique,  e.g.:

   $Object | ConvertTo-Expression | Out-File .\Expression.ps1
   $Object = . .\Expression.ps1

Warning: Invoking partly trusted input with Invoke-Expression or
[ScriptBlock]::Create() methods could be abused by malicious code
injections.