input: def port_java_to_python(java_snippet: str) -> str:
      """ Converts a given Java code snippet to Python 3.
      >>> port_java_to_python("public class Foo { public int foo( int a, int b ) { return a + b; } }")
      "def foo(a, b): return a + b"
      """
      # Conversion logic to be implemented
output:     import re
  
      # Remove Java class declaration
      java_snippet = re.sub(r'public\s+class\s+\w+\s*\{', '', java_snippet)
      java_snippet = re.sub(r'\}\s*$', '', java_snippet)
  
      # Remove Java method modifiers
      java_snippet = re.sub(r'public\s+', '', java_snippet)
      java_snippet = re.sub(r'private\s+', '', java_snippet)
      java_snippet = re.sub(r'protected\s+', '', java_snippet)
  
      # Convert Java method signature to Python function
      java_snippet = re.sub(r'(\w+)\s+(\w+)\s*\(\s*(\w+)\s+(\w+)\s*(,\s*\w+\s+\w+\s*)*\s*\)', r'def \2(\4\5):', java_snippet)
  
      # Convert Java return statement to Python return statement
      java_snippet = re.sub(r'return\s+', 'return ', java_snippet)
  
      # Remove Java-specific syntax
      java_snippet = re.sub(r';', '', java_snippet)
      java_snippet = re.sub(r'int\s+', '', java_snippet)
  
      return java_snippet.strip()