* @method string getType() Type of the entity. Can be mention (@username), hashtag, bot_command, url, email, bold (bold text), italic (italic text), code (monowidth string), pre (monowidth block), text_link (for clickable text URLs), text_mention (for users without usernames).
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* @method int getOffset() Offset in UTF-16 code units to the start of the entity
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* @method int getLength() Length of the entity in UTF-16 code units
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* @method string getUrl() (Optional). For "text_link" only, url that will be opened after user taps on the text.
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* @method User getUser() (Optional). For “text_mention” only, the mentioned user.