Changes to Create a new voice

the sample_audio request property contentMediaType changed from application/octet-stream to

the request property sample_audio became optional

request property sample_audio list-of-types was widened by adding types null to media type application/json

added the optional property kind to the response with the 200 status

the sample_audio request property contentMediaType changed from to application/octet-stream

the retention_notice request property's max was set to 365.00

the retention_notice request property's min was set to 1.00

added the required property type to the response with the 200 status

added the new optional request property description

added the optional property description to the response with the 200 status

added the optional property trimmed_seconds to the response with the 200 status

endpoint added