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Rename keys in an event. rename_keys is part of mutate event processors.

Option Required Type Description
entries Yes List List of entries. Valid values are from_key, to_key, and overwrite_if_key_exists. Renaming occurs in the order defined.
from_key N/A N/A The key of the entry to be renamed.
to_key N/A N/A The new key of the entry.
overwrite_if_to_key_exists No Boolean If true, the existing value gets overwritten if to_key already exists in the event.

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