Function: isFirstStep()

function isFirstStep(step: {
  description: string | null;
  fields: {
     additionalInfo?: {
        body?: string;
        title?: string;
     };
     adoptionStatement?: string;
     allowedFonts?: string[];
     asset?: {
        alt?: string;
        fileId?: string;
        filename?: string;
        mimeType?: string;
        url?: string;
     };
     dataSource?: string;
     defaultValue?:   | string
        | {
        from: string;
        to: string | null;
      };
     description?: string;
     fields?: {
        additionalInfo?: {
           body?: string;
           title?: string;
        };
        adoptionStatement?: string;
        allowedFonts?: string[];
        asset?: {
           alt?: string;
           fileId?: string;
           filename?: string;
           mimeType?: string;
           url?: string;
        };
        dataSource?: string;
        defaultValue?:   | string
           | {
           from: string;
           to: string | null;
         };
        description?: string;
        format?: string;
        label: string;
        maxDate?: string;
        maxFiles?: number;
        maxLength?: number;
        minDate?: string;
        name: string;
        options?: (
           | string
           | {
           description?: ... | ...;
           value: string;
        })[];
        placeholder?: string;
        prefillFrom?: string;
        required: boolean;
        showRange?: boolean;
        showTime?: boolean;
        signatureMode?: "typed" | "drawn";
        timezone?: string;
        type:   | "number"
           | "date"
           | "file"
           | "email"
           | "url"
           | "select"
           | "text"
           | "checkbox"
           | "textarea"
           | "phone"
           | "radio-group"
           | "multiselect"
           | "field-array"
           | "image"
           | "file-download"
           | "section-header"
           | "section-unset"
           | "signature"
           | "signature-adopted";
     }[];
     format?: string;
     label: string;
     maxDate?: string;
     maxFiles?: number;
     maxLength?: number;
     maxRows?: number;
     minDate?: string;
     minRows?: number;
     name: string;
     options?: (
        | string
        | {
        description?: string;
        value: string;
     })[];
     placeholder?: string;
     prefillFrom?: string;
     required: boolean;
     showRange?: boolean;
     showTime?: boolean;
     signatureMode?: "typed" | "drawn";
     timezone?: string;
     type:   | "number"
        | "date"
        | "file"
        | "email"
        | "url"
        | "select"
        | "text"
        | "checkbox"
        | "textarea"
        | "phone"
        | "radio-group"
        | "multiselect"
        | "field-array"
        | "image"
        | "file-download"
        | "section-header"
        | "section-unset"
        | "signature"
        | "signature-adopted";
  }[];
  formSchemaVersionId: string;
  id: string;
  key: string;
  label: string | null;
}, transitions: {
  fromStepId: string;
  id: string;
  label: string | null;
  priority: number;
  ruleId: string | null;
  ruleVersionId: string | null;
  toStepId: string;
}[]): boolean;