public Builder headers(final int header) {
			if (header < 0) {
				throw new IllegalArgumentException(
					"Number of header lines must not be negative: %d."
						.formatted(header)
				);
			}
			this.headers = header;
			return this;
		}
The number of header lines, which will be skipped.

@param header the number of header lines to be skipped
@return {@code this} builder
jenetics.incubator/src/main/java/io/jenetics/incubator/csv/CsvReader.java