Powershell adding key function with psreadline

gistfile1.txt

$parameters = @{
# setting key for psreadline
  Chord            = if ($args.Count -eq 0 -or $null -eq $args[0]["Key"]) { "F7" } else { $args[0]["Key"] }
  BriefDescription = 'Show Matching Command History'
  Description      = 'Show Matching Command History using Out-ConsoleGridView'
  #setting scriptblock for psreadline
  ScriptBlock      = {
    $params = @{ Global = $false }
    if ($F7Diagnostic) { $params["Diagnostic"] = $true }
    if ($F7UseNetDriver) { $params["UseNetDriver"] = $true }
    f7_history @params
  }
}
#pass parameter to set-psreadlineKeyhandler
Set-PSReadLineKeyHandler @parameters

# When Shift-F7 is pressed, show the global command line history in OCGV
$parameters = @{
  Chord            = if ($args.Count -eq 0 -or $null -eq $args[0]["AllKey"]) { "Shift-F7" } else { $args[0]["AllKey"] }
  BriefDescription = 'Show Matching Command History for All'
  Description      = 'Show Matching Command History for all PowerShell instances using Out-ConsoleGridView'
  ScriptBlock      = {
    $params = @{ Global = $true }
    if ($F7Diagnostic) { $params["Diagnostic"] = $true }
    if ($F7UseNetDriver) { $params["UseNetDriver"] = $true }
    f7_history @params
  }
}

Set-PSReadLineKeyHandler @parameters