in/java/lang/Long.html>Long</a></code>
                                            </td>
                                            <th class="colSecond" scope="row"><code><a href=Chapter.html#getNumberProperty(String)>getNumberProperty</a>(<a href=https://developer.android.com/reference/kotlin/java/lang/String.html>String</a> key) </code>
                                            </th>
                                            <td class="colLast">Returns the chapter property associated with the key.<