Identifier of the custom emoji corresponding to the style.
Prompt that will be used for text composition; 1-getOption("text_composition_style_prompt_length_max") characters.
Optional show_Pass true if the current user must be shown as the creator of the style.
Title of the style; 1-getOption("text_composition_style_title_length_max") characters.
Creates a custom text composition style. May return an error with a message "TONES_SAVED_TOO_MANY" if the maximum number of added custom styles has been reached. Request type for Tdjson#createTextCompositionStyle.