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# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
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# software distributed under the License is distributed on an
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# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
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from typing import Dict


def command_builder(method: str, params: Dict = None) -> Dict:
    """Build a command iterator to send to the BiDi protocol.

    Parameters:
    -----------
        method: The method to execute.
        params: The parameters to pass to the method. Default is None.

    Returns:
    --------
        The response from the command execution.
    """
    if params is None:
        params = {}

    command = {"method": method, "params": params}
    cmd = yield command
    return cmd
