code: def looks_like_implicit_value(v):
      """Returns true if 'v' is either implicit value, or
      the part before the first '-' symbol is implicit value."""
      assert isinstance(v, basestring)
      if feature.is_implicit_value(v):
          return 1
      else:
          split = v.split("-")
          if feature.is_implicit_value(split[0]):
              return 1
  
      return 0
  
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 4 for calling a global function with example usage: looks_like_implicit_value(v) and returns: int, int, int