<td><code>maxAmount</code></td><td><code>int64</code></td><td><p>The upper limit for this quota. max_amount should be bigger than 0</p></td><td>No</td></tr><tr id=Params-Quota-valid_duration><td><code>validDuration</code></td><td><code><a href=https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#duration>Duration</a></code></td><td><p>The amount of time allocated quota remains valid before it is
automatically released. This is only meaningful for rate limit quotas.
value should be <