that's too much!

.venv/lib/python3.12/site-packages/fiona/fio/load.py

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+"""$ fio load"""
+
+from functools import partial
+
+import click
+import cligj
+
+import fiona
+from fiona.fio import options, with_context_env
+from fiona.model import Feature, Geometry
+from fiona.schema import FIELD_TYPES_MAP_REV
+from fiona.transform import transform_geom
+
+
+@click.command(short_help="Load GeoJSON to a dataset in another format.")
+@click.argument("output", required=True)
+@click.option("-f", "--format", "--driver", "driver", help="Output format driver name.")
+@options.src_crs_opt
+@click.option(
+    "--dst-crs",
+    "--dst_crs",
+    help="Destination CRS.  Defaults to --src-crs when not given.",
+)
+@cligj.features_in_arg
+@click.option(
+    "--layer",
+    metavar="INDEX|NAME",
+    callback=options.cb_layer,
+    help="Load features into specified layer.  Layers use "
+    "zero-based numbering when accessed by index.",
+)
+@options.creation_opt
+@options.open_opt
+@click.option("--append", is_flag=True, help="Open destination layer in append mode.")
+@click.pass_context
+@with_context_env
+def load(
+    ctx,
+    output,
+    driver,
+    src_crs,
+    dst_crs,
+    features,
+    layer,
+    creation_options,
+    open_options,
+    append,
+):
+    """Load features from JSON to a file in another format.
+
+    The input is a GeoJSON feature collection or optionally a sequence of
+    GeoJSON feature objects.
+
+    """
+    dst_crs = dst_crs or src_crs
+
+    if src_crs and dst_crs and src_crs != dst_crs:
+        transformer = partial(
+            transform_geom, src_crs, dst_crs, antimeridian_cutting=True
+        )
+    else:
+
+        def transformer(x):
+            return Geometry.from_dict(**x)
+
+    def feature_gen():
+        """Convert stream of JSON to features.
+
+        Yields
+        ------
+        Feature
+
+        """
+        try:
+            for feat in features:
+                feat["geometry"] = transformer(Geometry.from_dict(**feat["geometry"]))
+                yield Feature.from_dict(**feat)
+        except TypeError:
+            raise click.ClickException("Invalid input.")
+
+    source = feature_gen()
+
+    # Use schema of first feature as a template.
+    # TODO: schema specified on command line?
+    try:
+        first = next(source)
+    except TypeError:
+        raise click.ClickException("Invalid input.")
+
+    # print(first, first.geometry)
+    schema = {"geometry": first.geometry.type}
+    schema["properties"] = {
+            k: FIELD_TYPES_MAP_REV.get(type(v)) or "str"
+            for k, v in first.properties.items()
+    }
+
+    if append:
+        opener = fiona.open(output, "a", layer=layer, **open_options)
+    else:
+        opener = fiona.open(
+            output,
+            "w",
+            driver=driver,
+            crs=dst_crs,
+            schema=schema,
+            layer=layer,
+            **creation_options
+        )
+
+    with opener as dst:
+        dst.write(first)
+        dst.writerecords(source)