Not possible to construct ListOptions

[lebe-dev]

Hi.

It is not possible to construct ListOptions struct because all properties are private. Or maybe i missed something?

#[derive(Serialize, Default, Clone)]
#[serde(rename_all = "camelCase")]
pub struct ListOptions {
    /// Maximum number of task lists returned on one page.
    /// Optional. The default is 20 (max allowed: 100).
    max_results: Option<u64>,

    /// Token specifying the result page to return. Optional.
    page_token: Option<String>,
}

Could you make it public or implement constructor?

[makarski]

Merged the respective PR #6. Thank you!