How to use the @pluralsight/ps-design-system-core.type.fontWeightMedium function in @pluralsight/ps-design-system-core

color: colors.bone,
    fontSize: type.fontSizeSmall,
    lineHeight: '16px',
    fontWeight: type.fontWeightMedium,
    paddingBottom: layout.spacingXSmall
  },
  [`.psds-text-input__label.psds-theme--${themeNames.light}`]: {
    color: colors.gray05
  },

  // __sub-label
  '.psds-text-input__sub-label': {
    color: colors.gray02,
    fontSize: type.fontSizeXSmall,
    lineHeight: '16px',
    fontWeight: type.fontWeightMedium,
    paddingTop: layout.spacingXSmall
  },
  [`.psds-text-input__sub-label.psds-theme--${themeNames.light}`]: {
    color: colors.gray03
  },

  // __error
  '.psds-text-input__error': {
    position: 'absolute',
    right: `calc(-1 * (${iconWidths.medium} + ${layout.spacingXSmall}))`,
    display: 'flex',
    alignItems: 'center',
    color: colors.red,
    marginLeft: layout.spacingXSmall
  }
}

background: 'none',
    border: 'none'
  },
  [`.psds-date-picker__icon.psds-theme--${themeNames.light}`]: {
    color: colors.gray02
  },
  [`.psds-date-picker__icon--appearance-${vars.appearances.subtle}`]: {
    color: colors.gray02
  },

  // __label
  '.psds-date-picker__label': {
    color: colors.bone,
    fontSize: type.fontSizeSmall,
    lineHeight: '16px',
    fontWeight: type.fontWeightMedium,
    paddingBottom: layout.spacingXSmall
  },
  [`.psds-date-picker__label.psds-theme--${themeNames.light}`]: {
    color: colors.gray05
  },

  // __sub-label
  '.psds-date-picker__sub-label': {
    color: colors.gray02,
    fontSize: type.fontSizeXSmall,
    lineHeight: '16px',
    fontWeight: type.fontWeightMedium,
    paddingTop: layout.spacingXSmall
  },
  [`.psds-date-picker__sub-label.psds-theme--${themeNames.light}`]: {
    color: colors.gray03

color: colors.gray02
  },
  [`.psds-text-input__icon--icon-align-${vars.iconAligns.right}`]: {
    left: 'auto',
    right: layout.spacingXSmall
  },
  [`.psds-text-input__icon--appearance-${vars.appearances.subtle}`]: {
    color: colors.gray02
  },

  // __label
  '.psds-text-input__label': {
    color: colors.bone,
    fontSize: type.fontSizeSmall,
    lineHeight: '16px',
    fontWeight: type.fontWeightMedium,
    paddingBottom: layout.spacingXSmall
  },
  [`.psds-text-input__label.psds-theme--${themeNames.light}`]: {
    color: colors.gray05
  },

  // __sub-label
  '.psds-text-input__sub-label': {
    color: colors.gray02,
    fontSize: type.fontSizeXSmall,
    lineHeight: '16px',
    fontWeight: type.fontWeightMedium,
    paddingTop: layout.spacingXSmall
  },
  [`.psds-text-input__sub-label.psds-theme--${themeNames.light}`]: {
    color: colors.gray03

'.psds-date-picker__calendar': ({ slide }) => ({
    position: 'relative',
    zIndex: '0',
    width: '286px',
    maxHeight: '352px',
    background: colors.white,
    color: colors.gray03,
    borderRadius: '2px',
    padding: `${layout.spacingMedium} ${layout.spacingLarge}`,
    fontSize: type.fontSizeXSmall,
    fontWeight: type.fontWeightMedium,
    boxShadow: `0 2px 4px ${transparentize(0.5, colors.black)}`,
    opacity: 0,
    transform: `translateY(calc(-1 * ${layout.spacingXSmall}))`,
    animation: `${slide || 'psds-date-picker__calendar__keyframes__slide'} ${
      motion.speedNormal
    } forwards`
  }),

background: colors.white,
    border: `1px solid ${colors.gray02}`
  },

  '.psds-text-area__field-container': {
    position: 'relative',
    display: 'flex',
    alignItems: 'center'
  },

  '.psds-text-area__label': {
    width: '100%',
    color: colors.bone,
    fontSize: type.fontSizeSmall,
    lineHeight: '16px',
    fontWeight: type.fontWeightMedium,
    paddingBottom: layout.spacingXSmall
  },
  [`.psds-text-area__label.psds-theme--${themeNames.light}`]: {
    color: colors.gray05
  },

  '.psds-text-area__sub-label': {
    color: colors.gray02,
    fontSize: type.fontSizeXSmall,
    lineHeight: '16px',
    fontWeight: type.fontWeightMedium,
    paddingTop: layout.spacingXSmall
  },
  [`.psds-text-area__sub-label.psds-theme--${themeNames.light}`]: {
    color: colors.gray03
  },

width: '100%',
    color: colors.bone,
    fontSize: type.fontSizeSmall,
    lineHeight: '16px',
    fontWeight: type.fontWeightMedium,
    paddingBottom: layout.spacingXSmall
  },
  [`.psds-text-area__label.psds-theme--${themeNames.light}`]: {
    color: colors.gray05
  },

  '.psds-text-area__sub-label': {
    color: colors.gray02,
    fontSize: type.fontSizeXSmall,
    lineHeight: '16px',
    fontWeight: type.fontWeightMedium,
    paddingTop: layout.spacingXSmall
  },
  [`.psds-text-area__sub-label.psds-theme--${themeNames.light}`]: {
    color: colors.gray03
  },

  '.psds-text-area__error': {
    position: 'absolute',
    right: `calc(-1 * (${iconWidths.medium} + ${layout.spacingXSmall}))`,
    display: 'flex',
    alignItems: 'flex-start',
    height: '100%',
    paddingTop: layout.spacingXSmall,
    marginLeft: layout.spacingXSmall,
    color: colors.red
  }