Source: muze-axis/src/cartesian-axis/tick-format.js

/**
 * Configuration properties for both x and y axis.
 *
 * @public
 * @module tickFormat
 *
 * @param {Number|string} value tick value
 * @param {Number} i tick index
 * @param {Array} ticks Array of tick values
 *
 * @return {Number|string} Formatted tick value.
 */