whole_func_string: function readConfig() {
  
  	// Checks if the package file contains a configuration.
  	const pkgConfigPromise = new Promise((resolve, reject) => {
  
  		fs.readFile(path.join(process.cwd(), "package.json")).then((data) => {
  
  			try {
  
  				resolve(JSON.parse(data).inlineImport);
  
  			} catch(error) {
  
  				reject(error);
  
  			}
  
  		}).catch((error) => {
  
  			// There's no configuration in package.json.
  			resolve();
  
  		});
  
  	});
  
  	// Looks for a configuration file.
  	const configFilePromise = new Promise((resolve, reject) => {
  
  		fs.readFile(path.join(process.cwd(), argv.config)).then((data) => {
  
  			try {
  
  				resolve(JSON.parse(data));
  
  			} catch(error) {
  
  				reject(error);
  
  			}
  
  		}).catch((error) => {
  
  			if(error.code === "ENOENT") {
  
  				reject("No configuration found (" + argv.config + ")");
  
  			} else {
  
  				reject("Failed to read the configuration file (" + error + ")");
  
  			}
  
  		});
  
  	});
  
  	return new Promise((resolve, reject) => {
  
  		pkgConfigPromise.then((config) => {
  
  			return (config !== undefined) ? Promise.resolve(config) : configFilePromise;
  
  		}).then(resolve).catch(reject);
  
  	});
  
  }
func_code_string: function readConfig() {
  
  	// Checks if the package file contains a configuration.
  	const pkgConfigPromise = new Promise((resolve, reject) => {
  
  		fs.readFile(path.join(process.cwd(), "package.json")).then((data) => {
  
  			try {
  
  				resolve(JSON.parse(data).inlineImport);
  
  			} catch(error) {
  
  				reject(error);
  
  			}
  
  		}).catch((error) => {
  
  			// There's no configuration in package.json.
  			resolve();
  
  		});
  
  	});
  
  	// Looks for a configuration file.
  	const configFilePromise = new Promise((resolve, reject) => {
  
  		fs.readFile(path.join(process.cwd(), argv.config)).then((data) => {
  
  			try {
  
  				resolve(JSON.parse(data));
  
  			} catch(error) {
  
  				reject(error);
  
  			}
  
  		}).catch((error) => {
  
  			if(error.code === "ENOENT") {
  
  				reject("No configuration found (" + argv.config + ")");
  
  			} else {
  
  				reject("Failed to read the configuration file (" + error + ")");
  
  			}
  
  		});
  
  	});
  
  	return new Promise((resolve, reject) => {
  
  		pkgConfigPromise.then((config) => {
  
  			return (config !== undefined) ? Promise.resolve(config) : configFilePromise;
  
  		}).then(resolve).catch(reject);
  
  	});
  
  }
func_documentation_string: Loads the configuration.
  
  @return {Promise} A promise that returns the configuration.