Revert "Use YAML.unsafe_load instead of YAML.load."
This reverts commit a0e97b0e2e4314a0815d09beb825e38f234778da.
Revert "Use YAML.unsafe_load instead of YAML.load."
This reverts commit a0e97b0e2e4314a0815d09beb825e38f234778da.