Hi @EthanWang ,
One of mine is below - firstly the Flow. The second action is SharePoint Get file content

then the Run Parameters - the Items of the Gallery is simply the SharePoint Library (filtered as needed) and I have an Email icon in the gallery.
EmailPDF.Run(
stSite, //The SharePoint Site address
ThisItem.Identifier, //The Identifier from the Library data (standard field)
User().Email, //User's email addesss
"Attached file - " & ThisItem.DocName, //DocName is a field populated when doc filed
"Attached is the " & ThisItem.DocName & " as requested",
ThisItem.Name //The name that goes on the email attachment
);
Notify(
"A copy of " & ThisItem.DocName & " has been emailed to " & User().Email & " - check your inbox",
NotificationType.Success
)
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