content: on run {file_path}
  	
  	# General Implement
  	
  	tell application "System Events"
  		return exists file file_path
  	end tell
  	
  	
  	
  	(* # Implemented by Shell
  	
  	## Example
  	try # will error if not exist
  		do shell script "[ -f \"/Users/IceHe/Documents/" & report_path & "\" ]"
  	on error
  		return false
  	end try
  	
  	## Reverse
  	try # will error if exists
  		do shell script "[ ! -f \"/Users/IceHe/Documents/" & next_report_path & "\" ]"
  	on error
  		return false
  	end try
  	
  	return true
  	*)
  	
  end run