@java.lang.Override
  public com.google.protobuf.ByteString getFilterBytes() {
    java.lang.Object ref = filter_;
    if (ref instanceof java.lang.String) {
      com.google.protobuf.ByteString b =
          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
      filter_ = b;
      return b;
    } else {
      return (com.google.protobuf.ByteString) ref;
    }
  }
<pre>
A filter expression that matches resources returned in the response.
The expression must specify the field name, a comparison
operator, and the value that you want to use for filtering. The value
must be a string, a number, or a boolean. The comparison operator
must be `=`, `!=`, `&gt;`, or `&lt;`.

For example, if you are filtering a list of private connections, you can
exclude the ones named `example-connection` by specifying
`name != "example-connection"`.

To filter on multiple expressions, provide each separate expression within
parentheses. For example:
```
(name = "example-connection")
(createTime &gt; "2022-09-22T08:15:10.40Z")
```

By default, each expression is an `AND` expression. However, you
can include `AND` and `OR` expressions explicitly.
For example:
```
(name = "example-connection-1") AND
(createTime &gt; "2021-04-12T08:15:10.40Z") OR
(name = "example-connection-2")
```
</pre>

<code>string filter = 4;</code>

@return The bytes for filter.
java-vmwareengine/proto-google-cloud-vmwareengine-v1/src/main/java/com/google/cloud/vmwareengine/v1/ListPrivateConnectionsRequest.java