| 12345678910111213141516171819202122232425262728293031323334353637383940414243444546 | let Declaration = require('../declaration')let flexSpec = require('./flex-spec')class AlignItems extends Declaration {  /**   * Return property name by final spec   */  normalize() {    return 'align-items'  }  /**   * Change property name for 2009 and 2012 specs   */  prefixed(prop, prefix) {    let spec    ;[spec, prefix] = flexSpec(prefix)    if (spec === 2009) {      return prefix + 'box-align'    }    if (spec === 2012) {      return prefix + 'flex-align'    }    return super.prefixed(prop, prefix)  }  /**   * Change value for 2009 and 2012 specs   */  set(decl, prefix) {    let spec = flexSpec(prefix)[0]    if (spec === 2009 || spec === 2012) {      decl.value = AlignItems.oldValues[decl.value] || decl.value    }    return super.set(decl, prefix)  }}AlignItems.names = ['align-items', 'flex-align', 'box-align']AlignItems.oldValues = {  'flex-end': 'end',  'flex-start': 'start'}module.exports = AlignItems
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