<dependency>
  <groupId>me.tongfei</groupId>
  <artifactId>poly-io_2.12</artifactId>
  <version>0.3.0</version>
</dependency>

implementation 'me.tongfei:poly-io_2.12:0.3.0'

implementation("me.tongfei:poly-io_2.12:0.3.0")

libraryDependencies += "me.tongfei" % "poly-io_2.12" % "0.3.0"

@Grapes(
  @Grab(group='me.tongfei', module='poly-io_2.12', version='0.3.0')
)

<dependency org="me.tongfei" name="poly-io_2.12" rev="0.3.0" />

[me.tongfei/poly-io_2.12 "0.3.0"]

'me.tongfei:poly-io_2.12:jar:0.3.0'