Contains text input to be synthesized. Either text or ssml
must be supplied. Supplying both or neither returns
[google.rpc.Code.INVALID_ARGUMENT][]. The input size is limited to
5000 characters.
This message has oneof_ fields (mutually exclusive fields).
For each oneof, at most one member field can be set at the same time.
Setting any member of the oneof automatically clears all other
members.
str
The raw text to be synthesized.
This field is a member of oneof_ input_source.
ssml
str
The SSML document to be synthesized. The SSML document must
be valid and well-formed. Otherwise the RPC will fail and
return [google.rpc.Code.INVALID_ARGUMENT][]. For more
information, see
SSML __.
This field is a member of oneof_ input_source.