Adds a new row of a given type at a given location.
- macOS 10.5+
The index at which the new row should be inserted.
rowmust be greater than
parent, and much specify a row that does not fall amongst the children of some other parent.
The type of the new row.
The index of the row of which the new row is a child. Pass
-1to indicate that the new row should be a root row.
trueif creation of the new row should be animated, otherwise