1, 'letter_type' => 'Surat Aktif Kuliah', 'purpose' => 'Persyaratan pengajuan beasiswa', 'status' => 'completed', 'processed_by' => 5, 'submitted_at' => '2026-07-01 09:00:00', 'completed_at' => '2026-07-02 14:00:00', 'created_at' => '2026-07-01 09:00:00', 'updated_at' => '2026-07-02 14:00:00', ], [ 'student_id' => 2, 'letter_type' => 'Surat Keterangan Lulus Sementara', 'purpose' => 'Persyaratan melamar magang', 'status' => 'in_process', 'processed_by' => 5, 'submitted_at' => '2026-08-01 09:00:00', 'completed_at' => null, 'created_at' => '2026-08-01 09:00:00', 'updated_at' => '2026-08-01 09:00:00', ], ]); } }