<dependency>
  <groupId>com.github.gwtmaterialdesign</groupId>
  <artifactId>gwt-material-am4charts</artifactId>
  <version>2.6.0-rc1</version>
  <type>gwt-lib</type>
</dependency>

implementation 'com.github.gwtmaterialdesign:gwt-material-am4charts:2.6.0-rc1'

implementation("com.github.gwtmaterialdesign:gwt-material-am4charts:2.6.0-rc1")

libraryDependencies += "com.github.gwtmaterialdesign" % "gwt-material-am4charts" % "2.6.0-rc1"

@Grapes(
  @Grab(group='com.github.gwtmaterialdesign', module='gwt-material-am4charts', version='2.6.0-rc1')
)

<dependency org="com.github.gwtmaterialdesign" name="gwt-material-am4charts" rev="2.6.0-rc1" />

[com.github.gwtmaterialdesign/gwt-material-am4charts "2.6.0-rc1"]

'com.github.gwtmaterialdesign:gwt-material-am4charts:jar:2.6.0-rc1'