old_contents: /**
  * @license Apache-2.0
  *
  * Copyright (c) 2018 The Stdlib Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *    http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
  
  /* eslint-disable no-invalid-this */
  
  'use strict';
  
  // MODULES //
  
  var logger = require( 'debug' );
  var isNonNegativeInteger = require( '@stdlib/assert/is-nonnegative-integer' ).isPrimitive;
  var isNonNegativeIntegerArray = require( '@stdlib/assert/is-nonnegative-integer-array' ).primitives;
  
  
  // VARIABLES //
  
  var debug = logger( 'plot:set:symbols-size' );
  
  
  // MAIN //
  
  /**
  * Sets the symbols size.
  *
  * @private
  * @param {(NonNegativeInteger|Array<NonNegativeInteger>)} v - size
  * @throws {TypeError} must be a nonnegative integer or nonnegative integer array
  * @returns {void}
  */
  function set( v ) {
  	/* eslint-disable no-invalid-this */
  	var isInt = isNonNegativeInteger( v );
  	if (
  		!isInt &&
  		!isNonNegativeIntegerArray( v )
  	) {
  		throw new TypeError( 'invalid value. `symbolsSize` must be a nonnegative integer or nonnegative integer array. Value: `' + v + '.`' );
  	}
  	if ( isInt ) {
  		v = [ v ];
  	} else {
  		v = v.slice();
  	}
  	debug( 'Current value: %s.', JSON.stringify( this._symbolsSize ) );
  
  	this._symbolsSize = v;
  	debug( 'New Value: %s.', JSON.stringify( this._symbolsSize ) );
  
  	this.emit( 'change' );
  }
  
  
  // EXPORTS //
  
  module.exports = set;
  
new_contents: /**
  * @license Apache-2.0
  *
  * Copyright (c) 2018 The Stdlib Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *    http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
  
  /* eslint-disable no-invalid-this */
  
  'use strict';
  
  // MODULES //
  
  var logger = require( 'debug' );
  var isNonNegativeInteger = require( '@stdlib/assert/is-nonnegative-integer' ).isPrimitive;
  var isNonNegativeIntegerArray = require( '@stdlib/assert/is-nonnegative-integer-array' ).primitives;
  
  
  // VARIABLES //
  
  var debug = logger( 'plot:set:symbols-size' );
  
  
  // MAIN //
  
  /**
  * Sets the symbols size.
  *
  * @private
  * @param {(NonNegativeInteger|Array<NonNegativeInteger>)} v - size
  * @throws {TypeError} must be a nonnegative integer or nonnegative integer array
  * @returns {void}
  */
  function set( v ) {
  	/* eslint-disable no-invalid-this */
  	var isInt = isNonNegativeInteger( v );
  	if ( !isInt && !isNonNegativeIntegerArray( v ) ) {
  		throw new TypeError( 'invalid value. `symbolsSize` must be a nonnegative integer or nonnegative integer array. Value: `' + v + '.`' );
  	}
  	if ( isInt ) {
  		v = [ v ];
  	} else {
  		v = v.slice();
  	}
  	debug( 'Current value: %s.', JSON.stringify( this._symbolsSize ) );
  
  	this._symbolsSize = v;
  	debug( 'New Value: %s.', JSON.stringify( this._symbolsSize ) );
  
  	this.emit( 'change' );
  }
  
  
  // EXPORTS //
  
  module.exports = set;
  
subject: Remove line breaks