title: Call powershell function in file without dot sourcing
body: <p>Is this possible if I only have one function in the file named the same as the file? I seem to remember reading about it before. Something like this:</p>
  
  <p>hello.ps1</p>
  
  <pre><code>function hello {
      Write-Host 'Hello, world'
  }
  </code></pre>