input: 
  from typing import List
  
  def removeDuplicates(arr: List[str]) -> List[str]:
      """ Removes all duplicates from the given array of strings and returns the resulting array.
      >>> removeDuplicates(['a', 'b', 'a', 'c', 'c', 'd'])
      ['a', 'b', 'c', 'd']
      >>> removeDuplicates(['x', 'y', 'z', 'x'])
      ['x', 'y', 'z']
      """
      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
  
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