Google Cloud Dataprep Documentation Documentation type Parameter Defines the data type that is to be applied to the transform. Type is defined as a String literal. For a list of valid strings, see Valid Data Type Strings. Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 3.0 License, and code samples are licensed under the Apache 2.0 License. For details, see our Site Policies. Java is a registered trademark of Oracle and/or its affiliates. Last updated January 23, 2018.