Can line breaks be added to the label parameter of a!gridTextColumn()?

Can line breaks be added to the label parameter of a!gridTextColumn()?

Have already tried the following but they don't seem to work.

a!gridTextColumn(
label: "Line1" & char(13) & "Line2",
data: {}
)

a!gridTextColumn(
label: "Line1" & char(10) & "Line2",
data: {}
)

a!gridTextColumn(
label: "Line1" & "<br/>" & "Line2",
data: {}
)