input: def removeDuplicates(arr):
   result = [] 
    
   # traverse for all elements 
   for i in arr: 
    
    # check if exists in result 
    if i not in result: 
     result.append(i) 
    
   # return result 
   return result
  
  """Given an array of strings, write a Python function to remove all duplicates and return the resulting array.
  >>> removeDuplicates(['a', 'b', 'a', 'c', 'c', 'd'])
  ['a', 'b', 'c', 'd']
  """
output:     result = [] 
    
      # traverse for all elements 
      for i in arr: 
        
        # check if exists in result 
        if i not in result: 
          result.append(i) 
        
      # return result 
      return result