old_contents: from uplink.clients.io.interfaces import (
      Client,
      Executable,
      IOStrategy,
      RequestTemplate,
  )
  from uplink.clients.io.execution import RequestExecutionBuilder
  from uplink.clients.io.templates import CompositeRequestTemplate
  from uplink.clients.io.blocking_strategy import BlockingStrategy
  from uplink.clients.io.twisted_strategy import TwistedStrategy
  
  __all__ = [
      "Client",
      "CompositeRequestTemplate",
      "Executable",
      "IOStrategy",
      "RequestTemplate",
      "BlockingStrategy",
      "AsyncioStrategy",
      "TwistedStrategy",
      "RequestExecutionBuilder",
  ]
  
  try:
      from uplink.clients.io.asyncio_strategy import AsyncioStrategy
  except (ImportError, SyntaxError):  # pragma: no cover
  
      class AsyncioStrategy(IOStrategy):
          def __init__(self, *args, **kwargs):
              raise NotImplementedError(
                  "Failed to load `asyncio` execution strategy: you may be using a version "
                  "of Python below 3.3. `aiohttp` requires Python 3.4+."
              )
  
new_contents: from uplink.clients.io.interfaces import (
      Client,
      Executable,
      IOStrategy,
      RequestTemplate,
  )
  from uplink.clients.io.execution import RequestExecutionBuilder
  from uplink.clients.io.templates import CompositeRequestTemplate
  from uplink.clients.io.blocking_strategy import BlockingStrategy
  
  __all__ = [
      "Client",
      "CompositeRequestTemplate",
      "Executable",
      "IOStrategy",
      "RequestTemplate",
      "BlockingStrategy",
      "AsyncioStrategy",
      "TwistedStrategy",
      "RequestExecutionBuilder",
  ]
  
  try:
      from uplink.clients.io.asyncio_strategy import AsyncioStrategy
  except (ImportError, SyntaxError):  # pragma: no cover
  
      class AsyncioStrategy(IOStrategy):
          def __init__(self, *args, **kwargs):
              raise NotImplementedError(
                  "Failed to load `asyncio` execution strategy: you may be using a version "
                  "of Python below 3.3. `aiohttp` requires Python 3.4+."
              )
  
  
  try:
      from uplink.clients.io.twisted_strategy import TwistedStrategy
  except (ImportError, SyntaxError):  # pragma: no cover
  
      class TwistedStrategy(IOStrategy):
          def __init__(self, *args, **kwargs):
              raise NotImplementedError(
                  "Failed to load `twisted` execution strategy: you may be not have "
                  "the twisted library installed."
              )
  
subject: Remove mandatory dependency on twisted