## collections.after_each

collections.after_each(separator, iterable)


Inserts `separator` after each item in `iterable`.

### Parameters


  
    
    
  
  

    

      
separator
      

        required.
        

          The value to insert after each item in `iterable`.
        
      
    
    

      
iterable
      

        required.
        

          The list into which to intersperse the separator.
        
      
    
  



## collections.before_each

collections.before_each(separator, iterable)


Inserts `separator` before each item in `iterable`.

### Parameters


  
    
    
  
  

    

      
separator
      

        required.
        

          The value to insert before each item in `iterable`.
        
      
    
    

      
iterable
      

        required.
        

          The list into which to intersperse the separator.
        
      
    
  



## collections.uniq

collections.uniq(iterable)


Returns a list of unique elements in `iterable`.

Requires all the elements to be hashable.


### Parameters


  
    
    
  
  

    

      
iterable
      

        required.
        

          An iterable to filter.