code: public EnvironmentResourceDescription withLaunchConfigurations(LaunchConfiguration... launchConfigurations) {
          if (this.launchConfigurations == null) {
              setLaunchConfigurations(new com.amazonaws.internal.SdkInternalList<LaunchConfiguration>(launchConfigurations.length));
          }
          for (LaunchConfiguration ele : launchConfigurations) {
              this.launchConfigurations.add(ele);
          }
          return this;
      }
docs: <p>
  The Auto Scaling launch configurations in use by this environment.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setLaunchConfigurations(java.util.Collection)} or {@link #withLaunchConfigurations(java.util.Collection)}
  if you want to override the existing values.
  </p>
  
  @param launchConfigurations
  The Auto Scaling launch configurations in use by this environment.
  @return Returns a reference to this object so that method calls can be chained together.