hasEntity method
Checks if the message contains any entities of a specific type.
Example:
if (ctx.hasEntity(MessageEntityType.url)) {
await ctx.reply('Found a URL!');
}
Implementation
bool hasEntity(MessageEntityType type) {
final messageEntities = entities;
if (messageEntities == null) return false;
return messageEntities.any((entity) => entity.type == type);
}