code: def expand_no_defaults(property_sets):
      """Expand the given build request by combining all property_sets which don't
      specify conflicting non-free features.
      """
      assert is_iterable_typed(property_sets, property_set.PropertySet)
      # First make all features and subfeatures explicit
      expanded_property_sets = [
          ps.expand_subfeatures() for ps in property_sets
      ]
  
      # Now combine all of the expanded property_sets
      product = __x_product(expanded_property_sets)
  
      return [property_set.create(p) for p in product]
  
file_path: turicreate/src/external/boost/boost_1_68_0/tools/build/src/build/build_request.py
imports: import b2.build.feature
  from b2.util.utility import *
  from b2.util import is_iterable_typed
  import b2.build.property_set
label_desc: Use image node_id 1 for calling a global function with example usage: expand_no_defaults(property_sets) and returns: unknown