Functions, procedures
procedure init_map
procedure init_map(
    p_map_id in varchar2,
    p_options in t_map_options:=null
)
                        initialize map
procedure add_point
procedure add_point(
    p_point in google_maps_pkg.t_point
)
                        add point to map
procedure render_map_script
procedure render_map_script
render map script
procedure render_map_placeholder
procedure render_map_placeholder(
    p_style in varchar2:=null,
    p_attributes in varchar2:=null
)
                        render map placeholder
Types
record t_map_options
type t_map_options is record(
    map_control_enabled boolean,
    map_type_control_enabled boolean
)