'sometimes|nullable|integer|exists:units,id', 'tax_regime' => 'nullable|string|max:50', 'bank' => 'nullable|string|max:100', 'agency' => 'nullable|string|max:20', 'account' => 'nullable|string|max:30', 'account_type' => 'nullable|string|max:20', 'account_holder' => 'nullable|string|max:255', 'pix_key' => 'nullable|string|max:255', 'billing_method' => 'nullable|string|max:50', 'due_date' => 'nullable|string|max:10', 'financial_email' => 'nullable|email|max:255', 'group' => 'nullable|string|max:100', 'maintenance_fee' => 'nullable|numeric|min:0', 'marketing_fund' => 'nullable|numeric|min:0', 'tbr' => 'nullable|numeric|min:0', 'max_freeze_count' => 'nullable|integer|min:0', 'charge_roi' => 'nullable|boolean', 'charge_fnm' => 'nullable|boolean', 'default_discount' => 'nullable|numeric|min:0|max:100', 'default_interest' => 'nullable|numeric|min:0', 'default_fine' => 'nullable|numeric|min:0|max:100', ]; } }