Represents a transformation that can be applied to a RawRow, transforming its individual string elements based on a collection of column-specific transformation functions.
This class is designed to process rows of data by applying transformations to specific columns, defined by their zero-based index. Any column index not explicitly configured with a transformation will default to an identity transformation, leaving the original value unchanged.
Value parameters
transformers
A map where the key is the column index (0-based) and the value is a Transformation[String, String] to be applied to the corresponding column's data. If a column index is not present in this map, an identity transformation is applied by default.