+$source = ['Bdf', '/path/to/birthday.bdf'];
+
+//Source: CSV file (simple)
+$source = ['Csv', '/path/to/file.csv'];
+
+//Source: CSV file (complex)
+$source = [
+ 'Csv',
+ [
+ 'filename' => '/path/to/file.csv',
+ 'columns' => [
+ 'name' => 0,
+ 'event' => 1,
+ 'date' => 2
+ ],
+ 'firstLineIsHeader' => true,
+ 'defaultEvent' => 'Birthday',
+ 'separator' => ',',
+ ]
+];