class_docstr: StudioML policy for adjusting experiment dependencies
  to specific execution environment and required resources.
code: def _is_special_reference(self, pkg: str):
      if pkg.startswith("-e git+"):
          return True
      if "git+https://" in pkg or "file://" in pkg:
          return True
      return False
  
imports: import re
  from studio.dependencies_policies.dependencies_policy import DependencyPolicy
label_desc: Use image node_id 2 for calling the StudioDependencyPolicy obj's underlying member method code with example usage: obj._is_special_reference(pkg) and returns: False, True, True