How to use the aurelia-cli.ProjectItem.text function in aurelia-cli

.then(name => {
        let fileName = this.project.makeFileName(name);
        let className = this.project.makeClassName(name);

        this.project.elements.add(
          ProjectItem.text(`${fileName}.ts`, this.generateJSSource(className)),
          ProjectItem.text(`${fileName}.html`, this.generateHTMLSource(className))
        );

        return this.project.commitChanges()
          .then(() => this.ui.log(`Created ${fileName}.`));
      });
  }

.then(name => {
        let fileName = this.project.makeFileName(name);
        let className = this.project.makeClassName(name);

        this.project.bindingBehaviors.add(
          ProjectItem.text(`${fileName}.ts`, this.generateSource(className))
        );

        return this.project.commitChanges()
          .then(() => this.ui.log(`Created ${fileName}.`));
      });
  }

.then(name => {
        let fileName = this.project.makeFileName(name);
        let className = this.project.makeClassName(name);

        this.project.elements.add(
          ProjectItem.text(`${fileName}.ts`, this.generateJSSource(className)),
          ProjectItem.text(`${fileName}.html`, this.generateHTMLSource(className))
        );

        return this.project.commitChanges()
          .then(() => this.ui.log(`Created ${fileName}.`));
      });
  }

.then(name => {
        let fileName = this.project.makeFileName(name);
        let className = this.project.makeClassName(name);

        this.project.elements.add(
          ProjectItem.text(`${fileName}.js`, this.generateJSSource(className)),
          ProjectItem.text(`${fileName}.html`, this.generateHTMLSource())
        );

        return this.project.commitChanges()
          .then(() => this.ui.log(`Created ${fileName}.`));
      });
  }

.then(name => {
        let fileName = this.project.makeFileName(name);
        let className = this.project.makeClassName(name);

        this.project.bindingBehaviors.add(
          ProjectItem.text(`${fileName}.ts`, this.generateSource(className))
        );

        return this.project.commitChanges()
          .then(() => this.ui.log(`Created ${fileName}.`));
      });
  }

.then(subFolders => {

            let fileName = this.project.makeFileName(name);
            let className = this.project.makeClassName(name);

            self.project.root.add(
              ProjectItem.text(path.join(subFolders, fileName + ".js"), this.generateJSSource(className)),
              ProjectItem.text(path.join(subFolders, fileName + ".html"), this.generateHTMLSource())
            );

            return this.project.commitChanges()
              .then(() => this.ui.log(`Created ${name} in the '${path.join(self.project.root.name, subFolders)}' folder`));
          });
      });

.then(name => {
        let fileName = this.project.makeFileName(name);
        let className = this.project.makeClassName(name);

        this.project.elements.add(
          ProjectItem.text(`${fileName}.js`, this.generateJSSource(className)),
          ProjectItem.text(`${fileName}.html`, this.generateHTMLSource(className))
        );

        return this.project.commitChanges()
          .then(() => this.ui.log(`Created ${fileName}.`));
      });
  }

.then(subFolders => {

            let fileName = this.project.makeFileName(name);
            let className = this.project.makeClassName(name);

            self.project.root.add(
              ProjectItem.text(path.join(subFolders, fileName + ".ts"), this.generateJSSource(className)),
              ProjectItem.text(path.join(subFolders, fileName + ".html"), this.generateHTMLSource(className))
            );

            return this.project.commitChanges()
              .then(() => this.ui.log(`Created ${name} in the '${path.join(self.project.root.name, subFolders)}' folder`));
          });
      });

async execute() {
    const name = await this.ui.ensureAnswer(
      this.options.args[0],
      'What would you like to call the custom attribute?'
    );

    let fileName = this.project.makeFileName(name);
    let className = this.project.makeClassName(name);

    this.project.attributes.add(
      ProjectItem.text(`${fileName}.js`, this.generateSource(className))
    );

    await this.project.commitChanges();
    await this.ui.log(`Created ${fileName}.`);
  }

.then(name => {
        let fileName = this.project.makeFileName(name);
        let className = this.project.makeClassName(name);

        this.project.attributes.add(
          ProjectItem.text(`${fileName}.ts`, this.generateSource(className))
        );

        return this.project.commitChanges()
          .then(() => this.ui.log(`Created ${fileName}.`));
      });
  }