Identify language (obj-c)

FIRLanguageIdentification.h

/**
 * Identifies the main language for the given text.
 *
 * @param text The input text to use for identifying the language. Inputs longer than 200 characters
 *     are truncated to 200 characters, as longer input does not improve the detection accuracy.
 * @param completion Handler to call back on the main queue with the identified language code or
 *     error.
 */
- (void)identifyLanguageForText:(NSString *)text
                     completion:(FIRIdentifyLanguageCallback)completion
    NS_SWIFT_NAME(identifyLanguage(for:completion:));