Get list of declared functions from script

Get-Functions.ps1

[CmdletBinding(SupportsShouldProcess)]
param (
    [string]$Path
)

if (Test-Path -Path $Path) {
    $Tokens = [System.Management.Automation.PSParser]::Tokenize((Get-Content -Path $Path),[ref]$null)
}

$StartLines = $Tokens | Where-Object {$_.Type -eq 'Keyword' -and $_.Content -ilike 'function'} | Select -ExpandProperty StartLine
$Tokens | Where-Object {$_.StartLine -in $StartLines -and $_.Type -eq 'CommandArgument'} | Select -ExpandProperty Content