<dependency>
  <groupId>org.apache.tomcat</groupId>
  <artifactId>tomcat-api</artifactId>
  <version>11.0.0-M21</version>
</dependency>

implementation 'org.apache.tomcat:tomcat-api:11.0.0-M21'

implementation("org.apache.tomcat:tomcat-api:11.0.0-M21")

libraryDependencies += "org.apache.tomcat" % "tomcat-api" % "11.0.0-M21"

@Grapes(
  @Grab(group='org.apache.tomcat', module='tomcat-api', version='11.0.0-M21')
)

<dependency org="org.apache.tomcat" name="tomcat-api" rev="11.0.0-M21" />

[org.apache.tomcat/tomcat-api "11.0.0-M21"]

'org.apache.tomcat:tomcat-api:jar:11.0.0-M21'