input.y:10.1-35: <error>error:</error> %define variable 'api.prefix' redefined
   10 | <error>%define api.prefix		{🌞}</error>
      | <error>^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</error>
input.y:9.1-37:      previous definition
    9 | <note>%define api.prefix		{sun}</note>
      | <note>^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</note>
input.y: <warning>warning:</warning> fix-its can be applied.  Rerun with option '--update'. [<warning>-Wother</warning>]
