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