old_contents: import os
  from typing import Callable, overload
  
  from typeguard import T_CallableOrType
  from typeguard import typechecked as _typechecked
  
  _STELLAR_SDK_ENFORCE_TYPE_CHECK_FLAG: str = "STELLAR_SDK_ENFORCE_TYPE_CHECK_FLAG"
  _STELLAR_SDK_ENFORCE_TYPE_CHECK: bool = os.getenv(
      _STELLAR_SDK_ENFORCE_TYPE_CHECK_FLAG, "False"
  ).lower() in ("true", "1", "t")
  
  
  @overload
  def type_checked() -> Callable[[T_CallableOrType], T_CallableOrType]:
      ...
  
  
  @overload
  def type_checked(func: T_CallableOrType) -> T_CallableOrType:
      ...
  
  
  def type_checked(
      func=None,
  ):
      return _typechecked(func=func, always=_STELLAR_SDK_ENFORCE_TYPE_CHECK)
  
new_contents: import os
  from typing import Callable, overload
  
  from typeguard import T_CallableOrType
  from typeguard import typechecked as _typechecked
  
  _STELLAR_SDK_ENFORCE_TYPE_CHECK_FLAG: str = "STELLAR_SDK_ENFORCE_TYPE_CHECK"
  _STELLAR_SDK_ENFORCE_TYPE_CHECK: bool = os.getenv(
      _STELLAR_SDK_ENFORCE_TYPE_CHECK_FLAG, "False"
  ).lower() in ("true", "1", "t")
  
  
  @overload
  def type_checked() -> Callable[[T_CallableOrType], T_CallableOrType]:
      ...
  
  
  @overload
  def type_checked(func: T_CallableOrType) -> T_CallableOrType:
      ...
  
  
  def type_checked(
      func=None,
  ):
      return _typechecked(func=func, always=_STELLAR_SDK_ENFORCE_TYPE_CHECK)
  
subject: fix typo