code: public ListServiceSpecificCredentialsResult withServiceSpecificCredentials(ServiceSpecificCredentialMetadata... serviceSpecificCredentials) {
          if (this.serviceSpecificCredentials == null) {
              setServiceSpecificCredentials(new com.amazonaws.internal.SdkInternalList<ServiceSpecificCredentialMetadata>(serviceSpecificCredentials.length));
          }
          for (ServiceSpecificCredentialMetadata ele : serviceSpecificCredentials) {
              this.serviceSpecificCredentials.add(ele);
          }
          return this;
      }
docs: <p>
  A list of structures that each contain details about a service-specific credential.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setServiceSpecificCredentials(java.util.Collection)} or
  {@link #withServiceSpecificCredentials(java.util.Collection)} if you want to override the existing values.
  </p>
  
  @param serviceSpecificCredentials
  A list of structures that each contain details about a service-specific credential.
  @return Returns a reference to this object so that method calls can be chained together.