text: module.exports = function callExpressionMatcher(callExpression, matcherMap) {
  	if (callExpression.callee.type === 'MemberExpression') {
  		const property = callExpression.callee.property;
  		if (!property || !property.name) {
  			return null;
  		}
  
  		return matcherMap[(property.name).slice(0, 2)];
  	}
  
  	if (callExpression.callee.type === 'Identifier') {
  		if (!callExpression.callee.name) {
  			return null;
  		}
  
  		return matcherMap[(callExpression.callee.name).slice(0, 2)];
  	}
  
  	return null;
  }