'How can I use the WooCommerce CLI to update a customer's metadata?

I feel like I should be able to do

sudo wp wc customer update 141 --meta_data="[{"key":"test_meta1","value":"test_meta_value"}]" --user=1

However, this does not work.

The result I get is

Success: Updated customer 141.

However, sudo wp wc customer get 141 --fields=meta_data --user=1 | grep test_meta

returns blank.

Almost certainly, I'm not providing the data in the right format, but I'm not sure what it is, or where its documented.

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Solution	Source