Transcription normalization configuration. Use transcription
normalization to automatically replace parts of the transcript
with phrases of your choosing. For StreamingRecognize, this
normalization only applies to stable partial transcripts
(stability > 0.8) and final transcripts.
A list of replacement entries. We will perform replacement
with one entry at a time. For example, the second entry in
["cat" => "dog", "mountain cat" => "mountain dog"] will
never be applied because we will always process the first
entry before it. At most 100 entries.