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'com.google.apis:google-api-services-datastore-protobuf:v1beta2-rev1-2.1.0'
<dependency>
<groupId>com.google.apis</groupId>
<artifactId>google-api-services-datastore-protobuf</artifactId>
<version>v1beta2-rev1-2.1.0</version>
</dependency>
<dependency org="com.google.apis" name="google-api-services-datastore-protobuf" rev="v1beta2-rev1-2.1.0"/>
"com.google.apis", "google-api-services-datastore-protobuf", "v1beta2-rev1-2.1.0"