code: public CreateUserPoolRequest withSchema(SchemaAttributeType... schema) {
          if (this.schema == null) {
              setSchema(new java.util.ArrayList<SchemaAttributeType>(schema.length));
          }
          for (SchemaAttributeType ele : schema) {
              this.schema.add(ele);
          }
          return this;
      }
docs: <p>
  An array of schema attributes for the new user pool. These attributes can be standard or custom attributes.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setSchema(java.util.Collection)} or {@link #withSchema(java.util.Collection)} if you want to override the
  existing values.
  </p>
  
  @param schema
  An array of schema attributes for the new user pool. These attributes can be standard or custom
  attributes.
  @return Returns a reference to this object so that method calls can be chained together.