| Param name | Description | 
|---|---|
| 
      id  required  | 
    
      
 ID of the marker description to be updated. Validations: 
  | 
  
| 
      marker_description  optional , nil allowed  | 
    
      
         Validations: 
  | 
  
| 
      marker_description[text]  optional  | 
    
      
 Marker’s description. Validations: 
  | 
  
| 
      marker_description[in]  optional  | 
    
      
 Position of the in-point/marker in seconds Validations: 
  | 
  
| 
      marker_description[out]  optional , nil allowed  | 
    
      
 Position of the out-point in seconds Validations: 
  |