How to use the cligj.indent_opt function in cligj

    @cligj.indent_opt
    def cmd(indent):
        click.echo("%s" % indent)

@indent_opt
@compact_opt
@projection_geographic_opt
@projection_projected_opt
@projection_mercator_opt
@sequence_opt
@use_rs_opt
@geojson_type_collection_opt(True)
@geojson_type_feature_opt(False)
@geojson_type_bbox_opt(False)
@click.pass_context
def bounds(ctx, input, precision, indent, compact, projection, sequence,
        use_rs, geojson_type):
    """Write bounding boxes to stdout as GeoJSON for use with, e.g.,
    geojsonio

      $ rio bounds *.tif | geojsonio

@indent_opt
# Options to pick out a single metadata item and print it as
# a string.
@click.option('--count', 'meta_member', flag_value='count',
              help="Print the count of features.")
@click.option('-f', '--format', '--driver', 'meta_member', flag_value='driver',
              help="Print the format driver.")
@click.option('--crs', 'meta_member', flag_value='crs',
              help="Print the CRS as a PROJ.4 string.")
@click.option('--bounds', 'meta_member', flag_value='bounds',
              help="Print the boundary coordinates "
                   "(left, bottom, right, top).")
@click.option('--name', 'meta_member', flag_value='name',
              help="Print the datasource's name.")
@click.pass_context
@with_context_env
def info(ctx, input, indent, meta_member, layer):

@cligj.indent_opt
@cligj.compact_opt
@cligj.projection_projected_opt
@cligj.sequence_opt
@cligj.use_rs_opt
@click.option(
    '--bidx', type=click.INT, default=0,
    help="Index of the band that is the source of shapes.")
@click.pass_context
def blocks(
        ctx, input, output, precision, indent, compact, projection, sequence,
        use_rs, bidx):

    """Write dataset blocks as GeoJSON features.

    This command writes features describing a raster's internal blocks, which
    are used directly for raster I/O.  These features can be used to visualize

@indent_opt
@compact_opt
@dst_crs_opt
@click.option(
    "--pagesize", "-p", default=10000, help="Max number of records to request"
)
@click.option("--sortby", "-s", help="Name of sort field")
@click.option(
    "--bounds-crs", "--bounds_crs", help="CRS of provided bounds", default="EPSG:3005"
)
@verbose_opt
@quiet_opt
def cat(
    dataset,
    query,
    bounds,
    bounds_crs,

@cligj.indent_opt
@cligj.compact_opt
@click.option('--record-buffered/--no-record-buffered', default=False,
              help="Economical buffering of writes at record, not collection "
                   "(default), level.")
@click.option('--ignore-errors/--no-ignore-errors', default=False,
              help="log errors but do not stop serialization.")
@click.option('--with-ld-context/--without-ld-context', default=False,
              help="add a JSON-LD context to JSON output.")
@click.option('--add-ld-context-item', multiple=True,
              help="map a term to a URI and add it to the output's JSON LD "
                   "context.")
@click.pass_context
@with_context_env
def dump(ctx, input, encoding, precision, indent, compact, record_buffered,
         ignore_errors, with_ld_context, add_ld_context_item, layer):

@cligj.indent_opt
@cligj.compact_opt
@click.option('--ignore-errors/--no-ignore-errors', default=False,
              help="log errors but do not stop serialization.")
@options.dst_crs_opt
@cligj.use_rs_opt
@click.option('--bbox', default=None, metavar="w,s,e,n",
              help="filter for features intersecting a bounding box")
@click.pass_context
@with_context_env
def cat(ctx, files, precision, indent, compact, ignore_errors, dst_crs,
        use_rs, bbox, layer):
    """
    Concatenate and print the features of input datasets as a sequence of
    GeoJSON features.

    When working with a multi-layer dataset the first layer is used by default.

@indent_opt
@click.pass_context
@with_context_env
def ls(ctx, input, indent):
    """
    List layers in a datasource.
    """
    result = fiona.listlayers(input)
    click.echo(json.dumps(result, indent=indent))

@indent_opt
@compact_opt
@projection_geographic_opt
@projection_projected_opt
@projection_mercator_opt
@click.option(
    '--dst-crs', default='', metavar="EPSG:NNNN", callback=to_lower,
    help="Output in specified coordinates.")
@options.sequence_opt
@use_rs_opt
@geojson_type_collection_opt(True)
@geojson_type_feature_opt(False)
@geojson_type_bbox_opt(False)
@click.pass_context
def bounds(ctx, input, precision, indent, compact, projection, dst_crs,
           sequence, use_rs, geojson_type):
    """Write bounding boxes to stdout as GeoJSON for use with, e.g.,

@indent_opt
@compact_opt
@projection_geographic_opt
@projection_projected_opt
@sequence_opt
@use_rs_opt
@geojson_type_feature_opt(True)
@geojson_type_bbox_opt(False)
@click.option('--band/--mask', default=True,
              help="Choose to extract from a band (the default) or a mask.")
@click.option('--bidx', 'bandidx', type=int, default=None,
              help="Index of the band or mask that is the source of shapes.")
@click.option('--sampling', type=int, default=1,
              help="Inverse of the sampling fraction; "
                   "a value of 10 decimates.")
@click.option('--with-nodata/--without-nodata', default=False,
              help="Include or do not include (the default) nodata regions.")