Create the field of schema or schema option.

Schema options

These are the schema options.

• :type - the type of the option item.

• :required - the option tiem is required.

• :default - the default value for option item if not specified.

• :subtype - the option item if you validate the list-data.

• :form - supper to validate the value that is a dict-type.

• :action - a function that output data

• :format - the data type date or datetime format-string

Types

• :any - Any type

• :str - String

• :int - Integer

• :float - Float

• :atom - Atom

• :bool - Boolean

• :list - List

• :dict - Map or Keyword

• :map - Map

• :keyword - Keyword

• :date - Date, default format-string is "{YYYY}/{0M}/{D}"

• :datetime - all Datetime type, default format-string is "%F %T"