function bifurcateBy( collection, options, predicate ) {
	var opts;
	var err;
	var cb;
	if ( !isCollection( collection ) ) {
		throw new TypeError( format( 'invalid argument. First argument must be a collection. Value: `%s`.', collection ) );
	}
	opts = {
		'returns': 'values'
	};
	if ( arguments.length === 2 ) {
		cb = options;
	} else {
		err = validate( opts, options );
		if ( err ) {
			throw err;
		}
		cb = predicate;
	}
	if ( !isFunction( cb ) ) {
		throw new TypeError( format( 'invalid argument. Last argument must be a function. Value: `%s`.', cb ) );
	}
	if ( opts.returns === 'values' ) {
		return returnValues( collection, opts, cb );
	}
	if ( opts.returns === 'indices' ) {
		return returnIndices( collection, opts, cb );
	}
	return returnPairs( collection, opts, cb );
}
Splits values into two groups according to a predicate function.

@param {Collection} collection - input collection
@param {Options} [options] - function options
@param {*} [options.thisArg] - execution context
@param {string} [options.returns="values"] - if `values`, values are returned; if `indices`, indices are returned; if `*`, both indices and values are returned
@param {Function} predicate - predicate function indicating which group an element in the input collection belongs to
@throws {TypeError} first argument must be a collection
@throws {TypeError} options argument must be an object
@throws {TypeError} last argument must be a function
@throws {TypeError} must provide valid options
@returns {(Array<Array>|Array)} group results

@example
function predicate( v ) {
    return v[ 0 ] === 'b';
}
var arr = [ 'beep', 'boop', 'foo', 'bar' ];

var out = bifurcateBy( arr, predicate );
// returns [ [ 'beep', 'boop', 'bar' ], [ 'foo' ] ]

@example
function predicate( v ) {
    return v[ 0 ] === 'b';
}
var arr = [ 'beep', 'boop', 'foo', 'bar' ];

var opts = {
    'returns': 'indices'
};
var out = bifurcateBy( arr, opts, predicate );
// returns [ [ 0, 1, 3 ], [ 2 ] ]

@example
function predicate( v ) {
    return v[ 0 ] === 'b';
}
var arr = [ 'beep', 'boop', 'foo', 'bar' ];

var opts = {
    'returns': '*'
};
var out = bifurcateBy( arr, opts, predicate );
// returns [ [ [ 0, 'beep' ], [ 1, 'boop' ], [ 3, 'bar' ] ], [ [ 2, 'foo' ] ] ]