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I would only like Baritone to mine fully grown cocoa beans. How do I do that (1.12.2 Forge)? Thank you!

Final checklist

• I know how to properly use check boxes
• I have not used any OwO's or UwU's in this issue.

Thank you for the help! Why is 10 the correct value for this operation, when the age of the bean is actually 2?

For minecraft 1.12.2 you can specify a meta value (#mine <namespace>:<name>:<meta>).
It normalizes some values so you can't specify the direction, but the different growth stages are kept distinct so you can mine fully grown cocoa facing in any direction using #mine minecraft:cocoa:10.

Every state has it's own meta value so 0-3 is age 1 in four directions, 4-7 is age 2 in four directions and 8-11 is the four states for age 3. Without Baritone ignoring some properties you would need #mine cocoa:8 cocoa:9 cocoa:10 cocoa:11, but since Baritone treats all cocoa blocks as if they were facing north you only have to specify the one for north facing age 3 cocoa, which is cocoa:10 (in fact, the other directions won't work at all).
To find out which meta value is which state you can simply try them all. Meta values can only be 0-15 (yes that does mean in mc 1.12.2 and earlier no block can have more than 16 distinct states).