Add "internal" property to address interface
@@ -459,6 +459,12 @@ Note: The library only supports Ed25519 addresses. Therefore a `type` property f
<td>number</td>
<td>Address index.</td>
</tr>
+ <tr>
+ <td>internal</td>
+ <td>&#10004;</td>
+ <td>boolean</td>
+ <td>Determines if an address is a public or an internal (change) address. See the concept of <a href="https://medium.com/@harshagoli/hd-wallets-explained-from-high-level-to-nuts-and-bolts-9a41545f5b0">chain node</a> for more details.</td>
+ </tr>
<tr>
<td>checksum</td>
<td>&#10004;</td>
