code: def none() -> SearchStrategy[None]:
      """Return a strategy which only generates None.
  
      Examples from this strategy do not shrink (because there is only
      one).
      """
      return just(None)
  
imports: from hypothesis.internal.reflection import get_pretty_function_description
  from hypothesis.strategies._internal.strategies import SampledFromStrategy, SearchStrategy, T, is_simple_data
  from hypothesis.strategies._internal.utils import cacheable, defines_strategy
label_desc: Use image node_id 2 for calling a global function with example usage: none() and returns: just