Thank you for the code.
In this case, I can suggest finding the column type inside the column.
For example, inside the CustomCell something like:
let type = this.columns.find(column=> column.field === props.field).type;
This provides access to all properties of the column array inside the CustomCell.
I do understand that this adds a litter more code to the cell, but it is required based on how React handles new function instances.
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