src/Options/FieldsetCustomizationOptions.php
public function getFieldOptions($field)
    {
        if (!$this->hasField($field)) {
            return [];
        }

        if (!isset($this->fields[$field]['__options__'])) {
            $this->fields[$field]['__options__'] = $this->copyArrayValues(
                $this->fields[$field],
                [
                    'attributes',
                    'options',
                    'label' => 'options',
                    'required' => ['key' => ['attributes','*'], 'value' => 'required', 'if' => true],
                    'type',
                ]
            );
        }

        return $this->fields[$field]['__options__'];
    }
public function getFieldOptions($field)
    {
        if (!$this->hasField($field)) {
            return [];
        }

        if (!isset($this->fields[$field]['__options__'])) {
            $this->fields[$field]['__options__'] = $this->copyArrayValues(
                $this->fields[$field],
                [
                    'attributes',
                    'options',
                    'label' => 'options',
                    'required' => ['key' => ['attributes','*'], 'value' => 'required', 'if' => true],
                    'type',
                ]
            );
        }

        return $this->fields[$field]['__options__'];
    }
Get the field option array compatible with element spec.

@param string $field

@return array