<dependency>
  <groupId>com.github.gwtmaterialdesign</groupId>
  <artifactId>gwt-material-am4charts</artifactId>
  <version>2.8.3</version>
  <type>gwt-lib</type>
</dependency>

implementation 'com.github.gwtmaterialdesign:gwt-material-am4charts:2.8.3'

implementation("com.github.gwtmaterialdesign:gwt-material-am4charts:2.8.3")

libraryDependencies += "com.github.gwtmaterialdesign" % "gwt-material-am4charts" % "2.8.3"

@Grapes(
  @Grab(group='com.github.gwtmaterialdesign', module='gwt-material-am4charts', version='2.8.3')
)

<dependency org="com.github.gwtmaterialdesign" name="gwt-material-am4charts" rev="2.8.3" />

[com.github.gwtmaterialdesign/gwt-material-am4charts "2.8.3"]

'com.github.gwtmaterialdesign:gwt-material-am4charts:jar:2.8.3'