The document describes implementing basic authentication in Mule using RAML. RAML (RESTful API Modeling Language) is used to describe RESTful APIs in a human and machine-readable format. The RAML definition includes security schemes for basic authentication. After importing the RAML file into Mule Anypoint Studio, flows are generated for the defined operations. The document shows the XML configuration for a main flow that uses HTTP basic authentication and Spring Security filters to secure the flow, which queries Salesforce data using the defined credentials.