Describir: Understanding transactions /

  _____      ___      ______    _____     ______     ___              
 /  ___||   / _ \\   /_   _//  |  ___||  /_   _//   / _ \\    ____    
| // __    | / \ ||  `-| |,-   | ||__    `-| |,-   | / \ ||  |    \\  
| \\_\ ||  | \_/ ||    | ||    | ||__      | ||    | \_/ ||  | [] ||  
 \____//    \___//     |_||    |_____||    |_||     \___//   |  __//  
  `---`     `---`      `-`'    `-----`     `-`'     `---`    |_|`-`   
                                                             `-`      
  ______  
 /_   _// 
  -| ||-  
  _| ||_  
 /_____// 
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