dhall-1.26.0: dhall-lang/tests/parser/success/unit/import/HeadersHashPrecedenceA.dhall
https://example.com/foo using ./headers sha256:0000000000000000000000000000000000000000000000000000000000000000
https://example.com/foo using ./headers sha256:0000000000000000000000000000000000000000000000000000000000000000