input: def eliminate_redundancies(source_code: str) -> str:
      """Modify an existing Python function to eliminate any redundancies in the source code.
      >>> eliminate_redundancies("""
      ... def just_me(name):
      ...     print("Hi, my name is "+name+".")
      ...     print("I am special and nothing else matters.")
      ...     print("What about you?")
      ... """)
      '''
      def just_me(name):
          print("Hi, my name is "+name+". I am special and nothing else matters.")
          print("What about you?")
      '''
      """
output:     import ast
      import astor
  
      class RedundancyEliminator(ast.NodeTransformer):
          def visit_Print(self, node):
              if isinstance(node.values[0], ast.BinOp) and isinstance(node.values[0].op, ast.Add):
                  if isinstance(node.values[0].left, ast.Str) and isinstance(node.values[0].right, ast.Str):
                      return None
              return node
  
      tree = ast.parse(source_code)
      RedundancyEliminator().visit(tree)
      return astor.to_source(tree).strip()