<obj>.<name>                // Get a property value
<obj>.<name> = <value>      // Set a property to a new value
"$<name>"                   // Embed a property value in a string
"${<obj>.<name>}"           // Same as previous (embedded value)

version = '1.0.1'
myCopyTask.description = 'Copies some files'

file("$buildDir/classes")
println "Destination: ${myCopyTask.destinationDir}"

<obj>.<name>()              // Method call with no arguments
<obj>.<name>(<arg>, <arg>)  // Method call with multiple arguments
<obj>.<name> <arg>, <arg>   // Method call with multiple args (no parentheses)

<obj>.<name> {
     ...
}

<obj>.<name>(<arg>, <arg>) {
     ...
}