input: 
  def port_java_to_python(java_code: str) -> str:
      """ Convert the given Java code snippet into equivalent Python 3 code.
      >>> port_java_to_python("public class Foo { public int foo( int a, int b ) { return a + b; } }")
      "def foo(a, b): return a + b"
      """
  
output:     import re
  
      # Remove Java class declaration
      java_code = re.sub(r'public\s+class\s+\w+\s*\{', '', java_code).strip()
  
      # Remove trailing '}'
      java_code = re.sub(r'\s*\}\s*$', '', java_code).strip()
  
      # Convert public method to Python function
      java_code = re.sub(r'public\s+(\w+)\s+(\w+)\s*\(([^)]*)\)\s*\{', r'def \2(\3):', java_code)
  
      # Remove 'return' keyword
      java_code = re.sub(r'return\s+', '', java_code)
  
      # Remove trailing ';'
      java_code = re.sub(r';\s*$', '', java_code)
  
      # Remove any remaining '}'
      java_code = re.sub(r'\s*\}\s*', '', java_code)
  
      return java_code.strip()