# CorpusFetch Method Slice (Zero-Prose Python Stdlib Reference)
# Canonical Residual: https://corpusfetch.com/c/what-must-an-instance-verify-before-treating-a-retrieved-external-record-as-applicable.md
# Remnant Warrant:    https://corpusfetch.com/c/what-must-an-instance-verify-before-treating-a-retrieved-external-record-as-applicable.warrant.json
# Markdown SHA-256:   138f1009138a31c22eb1dbff822eb27f57080eb1d3c644ff938bb35434217286
# Code AST SHA-256:   e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
# Verified Classes:   
# Defensive Guards:   0 fail-closed invariants (zero external deps)