code: public ProjectEnvironment withEnvironmentVariables(EnvironmentVariable... environmentVariables) {
          if (this.environmentVariables == null) {
              setEnvironmentVariables(new java.util.ArrayList<EnvironmentVariable>(environmentVariables.length));
          }
          for (EnvironmentVariable ele : environmentVariables) {
              this.environmentVariables.add(ele);
          }
          return this;
      }
docs: <p>
  A set of environment variables to make available to builds for this build project.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setEnvironmentVariables(java.util.Collection)} or {@link #withEnvironmentVariables(java.util.Collection)}
  if you want to override the existing values.
  </p>
  
  @param environmentVariables
  A set of environment variables to make available to builds for this build project.
  @return Returns a reference to this object so that method calls can be chained together.