<dependency>
  <groupId>com.github.os72</groupId>
  <artifactId>protoc</artifactId>
  <version>3.5.1-build2</version>
  <type>pom</type>
</dependency>

implementation 'com.github.os72:protoc:3.5.1-build2'

implementation("com.github.os72:protoc:3.5.1-build2")

libraryDependencies += "com.github.os72" % "protoc" % "3.5.1-build2"

@Grapes(
  @Grab(group='com.github.os72', module='protoc', version='3.5.1-build2')
)

<dependency org="com.github.os72" name="protoc" rev="3.5.1-build2" />

[com.github.os72/protoc "3.5.1-build2"]

'com.github.os72:protoc:jar:3.5.1-build2'