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use crate::{directions::request::Request, types::Language};

impl<'a> Request<'a> {

    /// Specify the language in which to return results.
    ///
    /// ## Arguments:
    ///
    /// * `language` ‧ The language that Google's response should be presented
    /// in.
    ///
    /// ## Description:
    ///
    /// * [See the list of supported
    /// languages](https://developers.google.com/maps/faq#languagesupport).
    /// Google often updates the supported languages, so this list may not be
    /// exhaustive.
    ///
    /// * If `language` is not supplied, the API attempts to use the preferred
    /// language as specified in the `Accept-Language` header, or the native
    /// language of the domain from which the request is sent.
    ///
    /// * The API does its best to provide a street address that is readable for
    /// both the user and locals. To achieve that goal, it returns street
    /// addresses in the local language, transliterated to a script readable by
    /// the user if necessary, observing the preferred language. All other
    /// addresses are returned in the preferred language. Address components are
    /// all returned in the same language, which is chosen from the first
    /// component.
    ///
    /// * If a name is not available in the preferred language, the API uses the
    /// closest match.
    ///
    /// * The preferred language has a small influence on the set of results
    /// that the API chooses to return, and the order in which they are
    /// returned. The geocoder interprets abbreviations differently depending on
    /// language, such as the abbreviations for street types, or synonyms that
    /// may be valid in one language but not in another. For example, _utca_ and
    /// _tér_ are synonyms for street in Hungarian.
    ///
    /// ## Example:
    ///
    /// * Force language to French:
    /// ```rust
    /// .with_language(Language::French)
    /// ```

    pub fn with_language(&'a mut self, language: Language) -> &'a mut Request {
        self.language = Some(language);
        self
    } // fn

} // impl