input: from typing import Callable
  
  
  def port_java_to_python(java_snippet: str) -> Callable:
      """ Converts a given Java code snippet to its corresponding Python 3 implementation.
      >>> port_java_to_python('public class Foo { public int foo( int a, int b ) { return a + b; } }')
      def foo(a, b):
       return a + b
      """
      # Parsing logic here
      pass
output:     
      import re
  
      def parse_java_method(java_snippet: str) -> str:
          method_pattern = re.compile(r'public\s+\w+\s+(\w+)\s*\(([^)]*)\)\s*\{([^}]*)\}')
          match = method_pattern.search(java_snippet)
          if match:
              method_name = match.group(1)
              params = match.group(2).strip().split(',')
              body = match.group(3).strip()
  
              param_list = []
              for param in params:
                  param_type, param_name = param.strip().rsplit(' ', 1)
                  param_list.append(param_name)
  
              return f"def {method_name}({', '.join(param_list)}):\n return {body}"
          return ""
  
      return parse_java_method(java_snippet)
  