Core-ktx

<dependency>
    <groupId>androidx.core</groupId>
    <artifactId>core-ktx</artifactId>
    <version>1.3.1</version>
</dependency>

compile group: 'androidx.core', name: 'core-ktx', version: '1.3.1'

compile 'androidx.core:core-ktx:1.3.1'

libraryDependencies += "androidx.core" % "core-ktx" % "1.3.1"

<dependency org="androidx.core" name="core-ktx" rev="1.3.1"/>

@Grapes(
            @Grab(group='androidx.core', module='core-ktx', version='1.3.1')
        )

[androidx.core/core-ktx "1.3.1"]

'androidx.core:core-ktx:jar:1.3.1'