function iterPipeline() {
	var nFuncs;
	var f;
	var i;

	nFuncs = arguments.length;
	if ( nFuncs === 1 && isArrayLike( arguments[ 0 ] ) ) {
		f = arguments[ 0 ].slice();
		nFuncs = f.length;
	} else {
		f = [];
		for ( i = 0; i < nFuncs; i++ ) {
			f.push( arguments[ i ] );
		}
	}
	if ( nFuncs === 0 ) {
		throw new Error( 'insufficient arguments. Must provide at least one iterator function.' );
	}
	for ( i = 0; i < nFuncs; i++ ) {
		if ( !isFunction( f[ i ] ) ) {
			throw new TypeError( format( 'invalid arguments. All arguments must be functions. Value: `%s`.', f[ i ] ) );
		}
	}
	return pipeline;

	/**
	* Pipeline function.
	*
	* @private
	* @param {Iterator} iterator - source iterator
	* @throws {TypeError} must provide an iterator
	* @throws {TypeError} each iterator function, except the last iterator function, within an iterator pipeline must return an iterator
	* @returns {(Iterator|*)} an iterator or pipeline result
	*/
	function pipeline( iterator ) {
		var iter;
		if ( !isIteratorLike( iterator ) ) {
			throw new TypeError( format( 'invalid argument. Must provide an iterator. Value: `%s`.', iterator ) );
		}
		iter = iterator;
		for ( i = 0; i < nFuncs-1; i++ ) {
			iter = f[ i ]( iter );
			if ( !isIteratorLike( iter ) ) {
				throw new TypeError( format( 'invalid argument. Each iterator function, except the last iterator function, within an iterator pipeline must return an iterator. Value: `%s`.', iter ) );
			}
		}
		return f[ nFuncs-1 ]( iter );
	}
}
Returns an iterator pipeline.

@param {(Function|FunctionArray)} iterFcn0 - iterator function or an array of iterator functions
@param {...Function} [iterFcn] - iterator function(s)
@throws {TypeError} all arguments must be functions
@throws {Error} must provide at least one iterator function
@returns {Function} iterator pipeline

@example
var randu = require( '@stdlib/random/iter/randu' );
var iterSomeBy = require( '@stdlib/iter/some-by' );
var iterHead = require( '@stdlib/iter/head' );
var iterThunk = require( '@stdlib/iter/pipeline-thunk' );

function threshold( r ) {
    return ( r > 0.95 );
}

var it1 = iterThunk( iterHead, 100 );
var it2 = iterThunk( iterSomeBy, 5, threshold );

var p = iterPipeline( it1, it2 );

var bool = p( randu() );
// returns <boolean>