nl_tokens: Converts value to a string key if it s not a string or symbol .
pl_tokens: function toKey$3 ( value ) { if ( typeof value == 'string' || isSymbol_1 ( value ) ) { return value ; } var result = ( value + '' ) ; return ( result == '0' && ( 1 / value ) == - INFINITY$5 ) ? '-0' : <mask> ; }