CodeQL library for Python
codeql/python-all 1.0.3-dev (changelog, source)

Member predicate ControlFlowNode::refersTo

Gets what this flow node might “refer-to”. Performs a combination of localized (intra-procedural) points-to analysis and global module-level analysis. This points-to analysis favours precision over recall. It is highly precise, but may not provide information for a significant number of flow-nodes. If the class is unimportant then use refersTo(value) or refersTo(value, origin) instead.

predicate refersTo(Object obj, ClassObject cls, ControlFlowNode origin)